identical twins 是什么

求助：一道英文物理题!
N identical balls lie equally spaced in a semicircle on a frictionless horizontal table, as shown. The total mass of these balls is M. Another ball of mass m approaches the semicircle from the left, with the proper initial conditions so that it bounces
(elastically) off all N balls and finally leaves the semicircle,
heading directly to the left.
在http://www.physics.harvard.edu/academics/undergrad/probweek/prob29.pdf有图 ,有答案，但是本人学识不够，看不懂啊

英语翻译
The Flash drive with Compact Flash card reacts identically as a standard IDE hard disk preset as a master.

when finished,the knot looks identical from both the front and back.
这句话没有错,但是我想问这里的finished能用being finished代替吗?现在分词不是可以引导状语从句?

第一道是这两个 要写出每一组中两个compounds的关系 是identical,isomers 或者different componds

n的答案是unique formulae 我不太懂为什么 我觉得他俩不一样
o的答案是identical 但我觉得他们俩不一样 左边是cis右边是trans 这两个难道不是geometric isomers么?


另外还有这道题 右边那个compound之间连接的化学键比左边的长 我记得之前老师又说如果化学键过长应该是双键或者三键.但是很明显这道题觉得他俩是一样的.

英译汉,如下.
Two reference signals identical to each other with an offset equivalent to the amplitude of the triangular carrier signal were used to generate PWM signals for the switches.

Each person's genetic code is unique except identical twins
Each person's genetic code is unique except identical twins
A.in case of
Bin the case of
Cthe point in case
Da case of

Your coat is identical _____mine. No wonder you took it ____mistake. A．to ; for B．as ; by C．as ; for D．to ; by

英语答题
1.We are in the ____ boat.A.same B.identical C.similar D.alike
2.Melted iron is poured into the mixer much _____ tea is poured into a cup from a teapot.A.in the same way like B.in the same way whichC.in the same way D.in the same way as
3.These two areas are ____ to each other because they both have a high rainfall during this season.A.same B.familiar C.similar D.alike
4.The mother was sorry that her son let her ____.A.alone B.out C.in D.down
5.Though _____ in a big city,Peter always prefers to paint the primitive scenes of country life.A.grown B.raised C.risen D.brought
6.I meant it _____ as a joke.A.lonely B.scarcely C.barely D.merely
7.The moon _____ from behind the clouds.A.exposed B.enhanced C.extended D.emerged
8.Many a player who had been highly thought of has _____ from the tennis scene.A.disposed B.disappeared C.discouraged D.disagreed
9.If people feel hopeless,they don’t bother to ____ the skills they need to succeed.A.adopt B.acquire C.accumulate D.assemble
10.Convenience foods are _____ in supermarkets.A.avoidable B.approachable C.favorable D.available
11.Tony is too _______ to get on well with others.A.aggressive B.acceptable C.ambitious D.available
12.The traditional approach ____ with complex problems is to break them down into smaller,more easily managed problems.A.to dealing B.in dealing C.dealing D.to deal
13.The final will _______ 50% of your grade in the course,the research project 20%,and the midterm 30%.A.account for B.call for C.argue for D.apply for
14.She _______ that difficult book with no trouble at all.A.thought through B.brought outC.caught up with D.breezed through
15.I don’t know why she avoids ______ her opinion on the subject.A.to give B.to be given C.giving D.being given
16.I really appreciate _____ to help me,but I am sure that I can manage by myself.A.you to offer B.that you offer C.your offering D.that you are offering
17.That young man still denies _____ the fire behind the store.A.to start B.having started C.start D.to have started
18.I don't mind ____ the decision as long as it is not too late.A.you to delay making B.your delaying makingC.your delaying to make D.you delay to make
19.Excuse me.If your call's not too urgent,do you mind ____ mine first?A.I make B.if I make C.me to make D.that I make
20.Jean did not have time to go to the concert last night because she was busy __ for her examination.A.to prepare B.to be prepared C.preparing D.being prepared

The twin brothers ar identical in appearance and no one but their parents can tell them apart.
大概理解后面的意思,但是看每个单词进行翻译就不清楚了.

the figure above is made up of two identical 270-degree arcs.Each arc is part of a circle of radius
the figure above is made up of two identical 270-degree arcs.Each arc is part of a circle of radius 8，what is the area of the figure
我等级不够，不能插入图片，就是两个一样的圆中间重叠了一部分

英语翻译
Port 1 and port 2 are each 8-bit wide and have identical characteristics.Data written to these ports are statically latched and remains unchanged until read.As input port they are non-latching,i.e.inputs must be present until read by an input instruction.Inputs are fully TTL compatible and output will drive one standard TTL load.
Timer/Counter The 8048 contains a counter to aid user in counting external events and generating accurate time delays without placing a burden on the processor for these function.The 8-bit binary counter is presettable and readable with two MOV instructions which transfer the contents of the accumulator to the counter and vice versa.

given a collection of 2n objects,n of which are identical and n of which are all distinct,how
many different subcollection of n objects are possible?有一系列2N的东西 N个事一样的 N个事不一样的 有多少个集合？　　　　答案是NC0＋　Nc1 + ......+Ncn

your password cannot contain three consecutivr identical characters什么意思

一道sat2物理题
Two identical,human-looking robots are standing and facing forward in separate spaceships.Both ships are moving at 0.8c but are traveling in opposite directions,as shown above.If a person on the ship with robot A could make measurements on both robots,which of the following would the person observe to be different?
A the robot's height
B the length of the robots' feetfrom toe to heel
C the width of the robot's face
D the length of robots' legs
E the width of the robots' shoulders

If we need to supply friction shims identical to mass production parts, we need to get an order for
请哪位高手帮忙翻译一下,先谢谢了呀!

SAT 2
Two identical spheres of radius 6 intersect so that the distance between their center is 10.The points of intersection of the two spheres form a circle.What is the area of this circle?
为什么在解 -2（x+5)

( ) are words identical in spelling but different in sound and meaning.
A：Perfect Homonyms
B：Homographs
C：Homophones
D：Homoforms

英语翻译
A man has 29 socks in his drawer.9 identical blue,8 identical grey and 12 identical black.The lights have fused and he is completely in the dark.How many socks must he take out to make certain that he has a pair of each colour?

英语智力题
The cost of an identical three-course lunch for four people was $56.00.The main course cost twice as much as the sweet and the sweet cost twice as much as the starter.How much didi the main course cost per person?

是be identical with 还是be identical to
如两者都可以,那么有什么区别》?

一道SAT语法题
Lions and tigers may be identical in size,but the tiger is the fiercer animal and the lion （the strongest）.这题是改成 is the stronger 还是 The stronger啊,

求similar ,same ,resemblance,identical 具体用法的区别
similar ,same ,resemblance,identical 具体用法上有什么区别吗?另外想问 be similar with 与 resemble 都做谓词部分的时候 可以互换吗
不是be similar with 是 be similar to resemblance 与 similar的区别（ identical 与 same 基本清楚了）以及 be similar to 与 resemble的区别

请帮忙将shrimp flavouring (natural identical flavour）翻译成阿拉伯文,谢谢~~~

英语翻译
That's a glue that's very similar if not identical to super glue,but it's a sterile form of that."

as shown below,4 identical cubes are used to form a cuboid and the total surface area reduces by 32 (平方厘米）,so what is the vulumes of each cube?（单位：厘米）
翻译

A large solid cube is assembled by gluing together identical unpainted small cubic blocks.All six faces of the large cube are then painted red.If exactly 27 of the small cubic blocks that make up the large cube have no red paint on them,how many small cubic blocks make up the large cube?

英语句子没看懂
When days become as identical as beads on a string,they blend together,and even months become a single day.To counter this,try to find ways to interrupt the structure of your day-to stop time,so to speak.

英语翻译
are no more alike than a pair of identical twins reared in different homes

一个英语问题
Find the identical word and cross it out.这里的题目要求cross it out是指划出来吗?怎么划呢

求翻译,就一句“the value is identical with the length of one side of unit area.”

Three identical spheres of diameter 4 lie on aflat surface so that each sphere touches the other two A fourth sphere of diameter 2 rests on top of and touches the other three spheres The distance from the top of the fourth sphere to the flat surface is

英语翻译
Plastics are polymers,molecules formed of many identical units bound to each other Iike pearls in a necklace．For a polvmer t0 be electricallY conductive it must”imitate”a metal-the electrons in the bonds must be freely mobile and not bound fast to the atoms.One condition for this is that the polymer consists of alternate single and double bonds,termed conjugates double bonds.Ployacetylene is the simplest possible conjugated polymer.It is obtained by polymerization of acety lene,shown to the left.
At the beginning of the 1970s Shirakawa was studying the polYmerisation of acetylene．in his reaction vessel polyacetylene appeared in the form of an unremarkable black powder．On one occasion a visiting researCher accidentallY added one thousand times more catalyst than usual．Imagine the researchers surprise When a beautiful silvery film formed on the surface of the liquid in the vessel．the obvious question was：”if the Plastic fiIm shines like a metal,can it conduct electricity,too?”
Although the polyacetylene film shone like Silver,it was not an electrical Conductor．CoUld it perhaps be modified in some way?In the mid-1970s the three Laureates began Co-operating to investigate this and results were quick to come．When they caUsed the films tO react with iodine vapour．The conductivity increased by as much as ten million times-a discovery that was eventually to give them a Nobel Prize in Chemistry．
By analogy With semiconductor technology one speaks of doping the polymer when it iS SUbjected to oxidation with iodine vapour．The more electrons are removed,the higher the degree of doping and the greater the conductivity．

解析长难句
Research,relating to identical twins, has highlighted how significant inherited characteristics can be for an individual's life.
But whether these characteristics are able to develop within the personality of an individual surely depends on whether the circumstances allow such a development.
求详细分析这两个句子.

The two centers of identical circles are separated by a distance of 17 cm and the radius of one of the circle is 5 cm.

一道SAT数学题,求解..The figure above is made up of two identical 270-degree arcs.
接上面.Each arc is part of a circle of radius 8. What is the area of the figure?
图就是两个圆重叠了一部分.翻译我明白,给个答题过程就行..答案是96π+64但是我怎么这么质疑它呢

Because the twins are identical,it is impossible to tell __________.
A
which one from the other
B
one from the other
C
one from which other
D
one and the other

短句,英翻中,
1.The units supplied are identical to those held by and described in the compliance folder held by B
2.Bassumes no responsibility in the retail supply ,servicing or repair of the listed product.
3.Any modification to the listed product voids this authorisation
4.this authorisation pertains only to the product listed.
2改成B assumes no responsibility in the retail supply ,servicing or repair of the listed product
其中B是一家公司.