在板式楼梯上层分布筋,从第一踏步那里布起?到转台板那里结束?

Spring Festival is the most important festival in China .It’s to celebrate the lunar calendar ‘s new year .In the evening before the Spring Festival ,families get together and have a big meal .In many places people like to set off firecrackers .Dumplings are the most traditional food .Children like the festival very much ,because they can have delicious food and wear new clothes .They can also get some money from their parents.This money is given to children for good luck .People put New Year scrolls on the wall for good fortune .
The Spring Festival lasts about 15 days long .People visit relatives and friends with the words “Have all your wishes ”.People enjoy the Spring Festival ,during this time they can have a good rest .
(二)Probably more food is consumed during the New Year celebrations than any other time of the year.Vast amounts of traditional food is prepared for family and friends,as well as those close to us who have died.
On New Year's Day,the Chinese family will eat a vegetarian dish called jai.Although the various ingredients in jai are root vegetables or fibrous vegetables,many people attribute various superstitious aspects to them.
Other foods include a whole fish,to represent togetherness and abundance,and a chicken for prosperity.The chicken must be presented with a head,tail and feet to symbolize completeness.Noodles should be uncut,as they represent long life.
In south China,the favorite and most typical dishes were nian gao,sweet steamed glutinous rice（糯米）pudding and zong zi (glutinous rice wrapped up in reed（芦苇）leaves),another popular delicacy.
In the north,steamed-wheat bread (man tou) and small meat dumplings were the preferred food.The tremendous amount of food prepared at this time was meant to symbolize abundance and wealth for the household
(三)My Spring Festival
My Spring Festival was great.Before the Chinese New Year,my families were all going to my grandparents’.Many of my relatives there were playing all the night.At night,we set off firecrackers.The voice was very loud,cars parked far from us were sounding.Maybe they feared the voice too.
The first day of the Chinese New Year,we all got up early.We said “Happy New Year!” or “Good luck this year!” to each other and get money from them.We visited our relatives all day.That made me feel very tired but very happy because I also can get money.
The second day of the New Year,I slept during the morning.In the afternoon,I went to the beautiful countryside,and visited the Yi River,it is very wide,about 1 kilometer.
Next day,we left my grandparents’ home for Qingdao.The expressway had been frozen.It was terrible!So we could only run by at a slow speed.
This festival was great,I love Spring Festival!
Chinese New Year
Chinese New Year is a Chinese traditional festival.We also call it the Spring Festival.It is on lunar January 1st.
On New Year’s Eve,all the people sit around the desk and have a big family dinner.There are some vegetables,some fish,some meat,some fruits and some drink like juice,Coke,Pepsi and some nice wine.Overall,this is a good and delicious dinner.After dinner,we always watch TV New Year progammes.We have a wonderful evening on New Year’s Eve.
On the first day of the Spring Festival,most of people get up early and say “happy new year” to each other.For breakfast,people often eat dumplings and baozi.After breakfast,people often make many delicious foods,and children often play cards,computer games and fireworks.On the second and third day,we visit friends and relatives.
Everyone is busy on Chinese New Year,and everyone is happy,too.

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有高人的答案,你看一下!

板式楼梯 的下表面,是平的,完全由板承重,梁板式楼梯 何在由板传给 楼梯板上的斜梁,然后再由斜梁传给 横梁……

这种换热器有4个口,有上进下出的一对口,另一对口是下进上出.
正确的接法应该是：
液体由热变冷的是上进下出,就是说进来时是比较热的,出的时候是比较冷的那对管,是上进下出.
液体由冷变热的是下进上出,就是说进来时是比较冷的,出的时候是比较热的那对管,是下进上出.
直接的记法是：热的在上,冷的在下.

板式住宅比较普遍认同的看法就是东西长,南北短的住宅建筑,整个外观给人的感觉就是一块巨型平板一样的建筑住宅楼.具体深入到内部特征来说,板楼的户型是南向面宽大,进深短,南北通透的格局.建造成如此格局的原因,主要是可以让住户在南北开窗的情况下,通过自然的通风形成对流,使室内空气流通.此外,它在朝向、通透性、建筑密度、人均绿化率等方面都给人们带来新的感受.

电化学发光是在反应器中同时放入反应物和发光物质,使被测物在电化学三电极之下发生氧化还原反应,进而使得发生物质发光,而被测光的量,再被转换成浓度讯号.
化学发光则不需要电化学的那套系统.在反应器中同时打入反应物和发光物质,当物质与反应物作用,因化学上的自身氧化还原反应,致使发光.而同时被测到光的量,也是再被转换成浓度讯号.

你楼梯二楼在那个位子收口,就是与二楼楼板相连的位子表示出来

电位差计测量电池的电动势.
那个学 没有教材?
可以到百 度文 库 里面查找讲 义.

梁式楼梯：在楼梯板下有梁的板式楼梯,梯段踏步板直接搁置在斜梁上,斜梁搁置在梯段两端的楼梯 梁上 .
板式楼梯：由混凝土板直接浇注而成, 其梯段踏步板直接支撑在两端的楼梯梁上.

筛板精馏塔的工艺设计,用它来分离乙醇-水溶液.
分离任务：
1.乙醇的质量分数为30%；
2.处理量为20000t/a；
3.塔顶产品组成（质量分数）为93.5%；
4.塔顶易挥发组分回收率为99%；
5.每年实际生产时间为7200h.
6.操作条件 ：
(1)操作压力：常压 (2)进料热状态：自选 (3)回流比：自选
(4)间接低压蒸汽 (表压为0.3MPa) 加热 (5)单板压降：0.7 KPa
我以前做过这个 包挂工艺尺寸计算 再沸器 原料预热器 离心泵 费用计算 折旧
你留个邮箱吧 我发给你

解题思路：（1）根据动能定理求出粒子射入绝缘板之前的速度．
（2）根据粒子在磁场中运动的轨迹，确定圆周运动的圆心，根据几何关系求出轨道半径，通过洛伦兹力提供向心力求出粒子在磁场中的速度，最后通过能量守恒求出损失的动能．
（3）带电粒子做直线运动，所受洛伦兹力与电场力平衡，根据平衡求出电场强度的大小．
（4）根据圆心角确定在第一象限内做圆周运动的时间，根据匀速直线运动的位移求出直线运动的时间，从而求出运动的总时间．

（1）粒子在电场中加速，由动能定理得：qU=[1/2]mv²-0，
解得：v=

2qU
m．
（2）粒子在磁场中做圆周运动轨迹如图所示：
由几何关系可得轨道半径：r=2l．
由牛顿第二定律得：qv′B=m
v′2
r，
解得：v′=[2qBl/m]．
根据能量守恒得，损失的动能为：△E_K=[1/2]mv²-[1/2]mv′²，
解得：△E_K=qU-
2q2B2l2
m．
（3）粒子若作直线运动，洛伦兹力与电场力相等，即：qv′B=qE，
解得：E=
2qB2l
m，方向与x轴正向斜向下成60°角．
（4）粒子在第一象限作匀速圆周运动的时间为：t₁=[5πm/6qB]，
粒子在第四象限做匀速直线运动的时间为：t₂=
2
3l
3v′=

3m
3qB，
粒子x轴右侧运行的总时间为：t=t₁+t₂=
(5π+2
3)m
6qB．
答：（1）粒子射入绝缘板之前的速度v=

点评：
本题考点： 带电粒子在匀强磁场中的运动；带电粒子在匀强电场中的运动．

考点点评： 本题考查了带电粒子在磁场中以及在复合场中的运动，关键理清粒子的运动情况，结合数学几何关系进行求解．

首先要了解钢筋为什么要设弯钩或者弯折 在承受弯矩或者承受剪力的部位,本部位的钢筋与其他部位连接,一般本部位的钢筋都要设置弯钩或者弯折.在板式楼梯中,因为阶梯直接承受人行荷载,属于受弯和受剪构件,所以此处钢筋与两边的连接也要设置弯钩或者弯折.

进料量太大,在提馏段的塔板上,蒸发量太小或者没了,自然就干了

梁板式楼梯就是梁式楼梯了
梁式楼梯,楼梯板下有梁的板式楼梯,因此又叫梁板楼梯 .

1000÷2500= 120÷2.4= 10.5÷1.5= 6.3÷63= 3.6÷0.012=
625÷25= 15÷7.5= 30.625÷25= 4.8÷120= 125÷2500
625÷25= 1÷8= 0.1÷5= 125÷0.25= 45÷9.5=
66.5÷9.5= 3125÷12.5= 350÷0.2= 720÷36= 9.6÷8=
0.25÷0.125= 1.24÷4= 3.6÷4= 1÷2.5= 6985.32÷10=
99.9÷444= 366÷183= 65.5÷5= 67.5÷50= 30.25÷0.25=
666÷1.11= 1.2÷3= 0.48÷6= 4.6÷23= 480÷0.15
6.8÷4= 0.72÷12= 0.135÷0.15 0.72÷4= 9.6÷6=
5.2÷13= 12.5÷5= 736÷3.2 8÷0.5= 0.32÷16=
0.141÷0.047 3.2÷0.04 25.3÷0.880 6.3÷2.1= 0.92÷4=
6÷1.2 0.4÷8 7.41÷0.57 6.8÷1.7= 0.56÷14=
2.4÷0.6 84÷0.04 0.49÷0.7 6.3÷3.1= 96÷0.6=
1.55÷0.5 0.35÷0.07 36÷1.2 4.8÷3＝ 6.8÷0.17
9.68÷16 0÷5.32＝ 13.2÷6＝ 33.5÷5＝ 3.6÷18＝
0.54÷2.7＝ 5.1÷25＝ 100÷500= 5.64÷12 0.91÷65
28.98÷18 48.6÷16 6.38÷88 3.84÷1.2 36.4÷5.6
36÷2.25 72.1÷0.07 0.52÷0.016 292.4÷0.43 84÷0.3
69÷0.46 0.4÷0.032 64.8÷5.4 8.74÷3.8 21.7÷0.62
0.7÷0.28 4.32÷0.09 0.888÷0.74 85.4÷6.1 27.72÷4.2
221÷0.34 1.47÷4.2 102÷0.06 19.19÷0.95 5.4÷10=
0.45÷0.15= 3.6÷0.1= 3.2÷100= 8.5÷ 1.7= 1.2÷0.3 =
0.49÷0.7= 0.096÷0.03= 84÷4.2= 0÷0.25= 1÷0.01=
7.2÷0.9= 9.3÷0.3= 4÷0.4= 0.45÷0.5= 0.2÷0.01=
好累,这么多,你先做着吧……

一、现浇梁板式楼板布置中,主梁应沿房屋（短）方向布置,次梁与（长）方向垂直布置.
二、预制钢筋混凝土楼板的支承方式有（板式）（梁板式）两种.
三、预制钢筋混凝土空心楼板的搁置应避免出现（三边）支承情况.
四、为了减少构件规格,楼梯踏步一般选定为（等跑）并且采用（偶数）梯段.
五、窗框在墙中的位置有（外平）（居中）（内平）三种情况.

"杯盖"三板式注塑模的结构设计、制造工艺着手,对三板式注塑模的典型结构进行了剖析,对模具制造的结构工艺性(制造的可行性、经济性)进行了分析.着重介绍了三板式注塑模的结构特点和设计要点,同时,从模具制造的结构工艺方面,介绍了凸、凹
【网址】http://emuch.net/journal/article.php?id=CJFDTotal-MJJS200704008

建议你结合建筑图来看一下,n是楼梯的总台阶数目.H是半楼层高度,t是梯板厚度,b1是半层楼梯宽度.L1是半跑的投影长度.

（1）粒子在电场中加速，由动能定理得：qU=
1
2 mv ² -0，
解得：v=

2qU
m ．
（2）粒子在磁场中做圆周运动轨迹如图所示：
由几何关系可得轨道半径：r=2l．
由牛顿第二定律得：qv′B=m
v ′ 2
r ，
解得：v′=
2qBl
m ．
根据能量守恒得，损失的动能为：△E _K =
1
2 mv ² -
1
2 mv′ ² ，
解得：△E _K =qU-
2 q 2 B 2 l 2
m ．
（3）粒子若作直线运动，洛伦兹力与电场力相等，即：qv′B=qE，
解得：E=
2q B 2 l
m ，方向与x轴正向斜向下成60°角．
（4）粒子在第一象限作匀速圆周运动的时间为：t ₁ =
5πm
6qB ，
粒子在第四象限做匀速直线运动的时间为：t ₂ =
2
3 l
3v′ =

3 m
3qB ，
粒子x轴右侧运行的总时间为：t=t ₁ +t ₂ =
(5π+2
3 )m
6qB ．
答：（1）粒子射入绝缘板之前的速度v=

2qU
m ．
（2）粒子经过绝缘板时损失的动能为qU-
2 q 2 B 2 l 2
m ．
（3）所加电场的电场强度的大小为
2q B 2 l
m ，方向与x轴正向斜向下成60°角．
（4）带电粒子在y周的右侧运行的总时间为
(5π+2
3 )m
6qB ．

在两个楼板层之间,包括两个平行而方向相反的梯段和一个中间休息平台.经常两个梯段做成等长,节约面积.
板式楼梯就是由混凝土板直接浇注而成,梁式楼梯就是在楼梯板下有梁的板式楼梯,因此又叫梁板楼梯 .
板式楼梯纵向荷载由板承担,但梁式楼梯纵向荷载由梁承担 .
不过现在一般建筑中梁式楼梯很少用的了,也少见.
板式楼梯可把梯段踏步板看成一块大的单向板.板式楼梯就是梯段踏步板直接支撑在两端的楼梯梁上.梁板式楼梯是梯段踏步板直接搁置在斜梁上,斜梁搁置在梯段两端的楼梯梁上.
板式楼梯传力路线：
楼梯板—平台梁—墙或柱.
板长在3米以内.板不能裂!所以要加温度钢筋.
配筋方式：纵向配置钢筋,搁于平台梁及楼面梁.
梁式楼梯传力路线：
踏步板—斜梁—平台梁—墙或柱.
当踏步板裂了,若楼梯梁完好,只是局部问题.
配筋方式：梯段横向配筋,搁在斜梁上,另加分布钢筋.平台主筋均短跨布置,依长跨方向排列,垂直安放分布钢筋.
这是我搜到的 贴给你看看

混凝土板式楼梯的“板”指的是梯段斜板（楼梯斜向上的部分）.
梯段斜板已经包括踏步在内了.

通径,是指单向阀内的油孔的直径.
管式和板式,是单向阀的两种安装方式.管式的,是螺纹孔,将管接头拧进去安装管子的.板式的,是光孔,孔周围（或者安装板上）会有O型圈槽,使用O型圈进行密封的.楼上回答的对,是用螺钉将单向阀安装在阀块或者安装板上.
单向阀只允许油液单向通过,在单向通过的时候,就需要将单向阀的阀芯打开,才能通过,而阀芯的背后一般是由弹簧的,必须油液的压力降弹簧顶开,单向阀才能开启.而将弹簧顶开的这个最低压力,就是单向阀的开启压力.

这题自身就有问题
1 没说版本
2没说安装程度 完整安装和自定义不同 版本不同 数量也不同
你书上给的答案是B 应该是07版本的题吧
之前有考试题答案似乎是28来着 这种东西真心没怎么留意过 个人感觉没必要啊 呵呵。

若有次梁和主梁之分,其传力路线便是荷载～板～次梁～主梁～(墙或柱等竖向承重构件)

（1）粒子在电场中加速由动能定理可知
解得
（2）粒子在磁场中作圆周运动轨迹如图

由几何关系可得轨道半径为2l
由
解得 =
由动能定理得
代入数据解得
所以损失动能为
或者 ，带入结果得
（3）粒子若作直线运动则 =Eq
代入数据解得E= ，方向与x轴正向斜向下成60°角
粒子在第一象限作匀速圆周运动的时间t ₁ =
粒子在第四象限做匀速直线运动时间t ₂ = =
粒子x轴右侧运行的总时间t= =

+1就是把上一层楼板当成一步

梁式楼梯又称梁板式楼梯.
所以你说的梁式楼梯和梁板式楼梯其实就是一种楼梯

The price for 1300 of wine shelives is about the same of the 2000's.The material of wine shelf is non-raw board mode.

摘要;The soap box bottom structure manufacturability analysis,design with a mold cavity sprue push rod,a two plate injection mold.The die structure is simplified the mold processing and a very good solution to the soap box bottom mold design,the selection and design of gating system,demoulding mechanism,design and manufacture of the boiling water bottle cap mold,the mold is easy to operate and stable and reliable work,plastic parts demoulding after leveling,the quality meets the design requirements.
关键词：注射模（injection mold）；模具设计（mold design）；浇注系统（gating system）；脱模机构（Demoulding mechanism）；肥皂盒底盒（Soap box bottom）
请给分!