The substances are___from a mixture of liquids be

英语翻译
c2 chemicals and hazardous substances .
hp's supplier code of conduct states that “chemical and other materials posing a hazard if released to the environment are to be identified and managed to ensure their safe handling,movement,storage,recycling or reuse and disposal.”
2.1 does the facility use chemical and other hazardous substances which pose a hazard if released to the environment in its operations?
0 yes 0 no
2.1.1 if “yes”,please indicate the types of hazardous materials used.check all that apply:
0 liquid chemicals,(for example:acids,solvents,paints,etc.)
0 hazardous (toxic,corrosive or flammable) gases
0 hazardous solids (for example:toxic metals,powdered/particulate material)
0 radiation sources
0 other:
2.1.2 in what types of containers are chemicals stored?check all that apply:
0 drums,carboys,etc.less than 400 liters each
0 large portable containers over 400 liters each
0 above ground bulk storage ***s
0 underground storage ***s
0 compressed gas cylinders
0 other:

请大家帮忙翻译“Restrictions on substances used or formed”
我在翻译海绵制作中的限制,这句话好像是关于材料的限制.
used这里应该是制作中所涉及的,而formed好像是成形的.
可是连在一起就不是很通顺了,请大家指点!

Rank the following substances in order from most soluble in water to least soluble in water.
methane: , hexanol: , table salt: , propane:

Substances will expand or contract()heated or cooled,but this is not the case with water.
A.when they will be B.if they will be C.as they being D.when 为什么选D呢?时间状语从句一般都是用主将从现吗?

Arrange the following substances in order of increasing mass percent of nitrogen.
(a) NO,a gas formed by the reaction of N2 with O2 in internal combustion engines.
(b) NO2,a brown gas mainly responsible for the brownish color of photochemical smog.
(c) N2O4,a colorless liquid used as a fuel in space shuttles.
(d) N2O,a colorless gas sometimes used as an anesthetic by dentists (known as laughing gas).
NO2 = N2O4 < NO = N2O
NO2 = N2O4 < NO < N2O
NO2 < N2O4 = NO < N2O
NO2 < N2O4 < NO < N2O
（以上不等式哪个正确?）

英语翻译
The not required and recovered nutritious substances the fish will discharge.I.e.,constantly new nutritious substances will flow in the pond by the inflow or will entry our water from the air and in addition Fishes by their excrements will add more nutritious substances into the water.
这篇文章主要将水中营养物质过多造成水质污染,这段话前面主要是写了鱼类的食物链.

翻译句子,英语高手进来帮忙
1.Practically all substances expand when heated and contract when cooled
2.This was the period when Einstein began the research which resulted in the creation of his famous theory of Relativity
3.It is a great pleasure to be here in Beijing and to have this occasion for thanking the Chinese government and the people of China for all the kindness and hospitality, which they have shown me.
4.He who has never reached the Great Wall is not a true man
5.We can measure the water in a pot, but we can't measure its heat. We haven't an instrument for that
6.The time-keeping devices of electronic watches are much more accurate than those of mechanical ones
7.These developing countries cover vast territories, encompass a large population and abound in natural resources

第二节: 语法填空 Vitamins are a group of substances（物质）found in food. The body needs them for life and health. So usually, many people care for the question: am I getting enough vitamins, and am I getting the right kind? Even though very small amounts of each vitamin are enough for the needs of the body, the worry people have about vitamins has some reasons. And this has to do with their ___11_ --- the food they take in. A person eating a good variety of food get all the vitamins now ___12 ___ (know) to be needed. The problem is that there are many people who don’t ___13_ __ foods wisely. So the answer ___14 ___ this question is: No extra ___15_ __ are needed, ___16 __ you eat proper foods. In fact, many of the vitamins cannot be ___17_ __（store） in the body, so when extra vitamins are taken in, the body simply gets rid of them. It is even ___18 ___ (harm) to put too much of certain vitamins into the body. This has been found to be ___19 (truth) of vitamin A and D, when ___20 ___ amounts are taken in.

substances will expand or contract__heated or cooled,but this is not the case with watersubstanc...
substances will expand or contract__heated or cooled,but this is not the case with watersubstances will expand or contract__heated or cooled,but this is not the case with water
a when they will be
b if they will be
c as they being
d when
重点是c为什么不对?

英语翻译
The reaction of metals with these substances can be put in order.Here is a table with the metals that react most at the top,and the metals that react least at the bottom.

chemistry is the science of substances ___the science of energy .
a and is physics b or is physics c and physics d or physics is
选什么 为什么 谢啦

怎么翻译dying from exposure to toxic substances
The large areas of darkened coral and other damaged marine organisms were almost certainly dying from exposure to toxic substances.

Which of the following substances,found in soil,is used by plants to make proteins.
A Carbon dioxide
B Nitrate
C Oxygen
D Vitamins

经过RoHS认证英语怎么说?
RoHS means Restriction of Hazardous Substances Directive.危害性物质限制指令.

英语翻译
ionic substances conduct electricity when molten or in aqueous solution-they are electrolytes.Since the ions have been freed from their fixed positionin the crystal they are able to move.Thus an electric current can pass through when a voltage is applied between two electodes dipped into the ionic melt or solution.
如果有打错字的地方,请见谅.

分析几句英语（求高手）
some kinds of substances are better for certain purposes than are other kinds of matter.
疑问：第二个are是怎么回事,怎么这么用啊
He smoked more cigarettes than are good for him.
疑问：这个句子结构是什么,读起来好别扭
my typewriter is not the machine ___ it was.
than/ as/ that/ which 填哪个,是什么用法

All the substances,______ solids,liquids or gases,are made up of entirely atoms.

[ ]

A. whether they B. whether C. whether are they D. whether are

Various substances differ widely in their magnetic characteristics如何翻译啊?

英语翻译
elements are substances made up of only one kind of atom.atoms of an element all contain the same number of protons.elements can be classified according to the particles they are made up frpm.elements can be classified by there state (or phase )at room temperature.the state means whether the element is a solid.liquid or gas.
substances which contain different elements are either mixtures or compounds.
最好不要用翻译器.（现在我馍有财富值了.赚够多少一定全部抛出感谢）
话是这样讲 可我晕了。书上说element 是由一种atom组成的 然后有的atom连接在一起成为了molecule 就是说 element是由一种atom 或者molecule组成的吗？那像air和nitrigen dioxide那些东西 是不是不是mixture就是compound?

The blood,the carrier of these substances,is pumped through a closed system of blood vessels by the heart,which in mammals is really 2 pumps in series with each other

几个单选题求解
The fragrances of many natural substances come from oils,__________ these oils may be used in manufacturing perfumes.
x05A.ofx05B.whetherx05C.fromx05D.and
If only our team ___________ one more point!
x05A.scoresx05B.had scoredx05C.scoredx05D.have scored
___________,he could not lift the weight.
x05A.Strong while he wasx05B.However strong as he was
x05C.Strong as he wasx05D.Strong although he was
Tom is one of the top students who __________ by the headmaster.
x05A.have been praisedx05B.has been praisedx05x05x05
x05C.have praisedx05x05D.are praised
You could do it,if you _________ try hard enough.
x05A.mightx05B.shouldx05C.couldx05D.would
George would certainly have attended the proceedings__________.
x05A.if he didn’t get a flat tirex05B.if the flat tire hadn’t happened
x05C.had he not had a flat tirex05D.had the tire not flattened itself
I would appreciate _________ it a secret.
x05A.you to keepx05x05B.that you would keep
x05C.your keepingx05x05D.that you are keeping
We _________ the letter yesterday,but it didn’t arrive
x05A.must receivex05x05B.must have received
x05C.ought to receivex05D.ought to have received
主要是关于几个虚拟语气的答案解析,

substances will expand or contract__heated or cooled,but this is not the case with water.
a when they will be
b if they will be
c as they being
d when
为什么选D,ABC哪错了?