孔

This pin fits into the piston pin holes and into a hole in the top end of the connecting rod.

这个销装在活塞销座孔和连杆小头衬套孔内。

A drilled or cored and spaced equally around the pitch circle, which is concentric withthe bore

螺栓孔应为钻孔，均匀的分布在节距圆上，并与孔同心

The parts are cast parts. In the processing, it is easier to ensure the processing accuracy of plane than the hole. So the parts' main planes are hole, two blades of the Plectrum and groove.

它的主要加工面是孔、拨叉叉口两端面和槽，在加工中由于面的加工精度要比孔的加工精度容易保证。

The parts are cast parts. In the processing, it is easierto ensure the processing accuracy of plane than the hole. So theparts' main planes are hole, two blades of the Plectrum and groove.

它的主要加工面是孔、拨叉叉口两端面和槽，在加工中由于面的加工精度要比孔的加工精度容易保证。

And in the latter process of working, it also takes hole as the poisoning base and works the two bales of Plectrum, hole, bottom plane, groove and inclined plane. In the entire machining process, it uses separately the milling machine, driller and boring machine.

在后面的工序中，均以该孔为定位基准，加工拨叉叉口两端面、孔、底平面、槽和斜平面，在整个加工过程中，分别采用了铣床、钻床和镗床。

And inthe latter process of working, it also takes hole as the poisoningbase and works the two bales of Plectrum, hole, bottom plane,groove and inclined plane. In the entire machining process, it usesseparately the milling machine, driller and boring machine.

在后面的工序中，均以该孔为定位基准，加工拨叉叉口两端面、孔、底平面、槽和斜平面，在整个加工过程中，分别采用了铣床、钻床和镗床。

The simulating results are consonant with the engineering practice for sand stone and shale while charging with 2# rock ex plosive and 21mm shothole...

对砂岩、页岩，炮孔装入 2号岩石炸药，炮孔半径为 2 1mm时，数值模拟得到的切缝管的切缝宽度与工程实际接近，为工程中取切缝管切缝宽度为 3～ 5mm找到了理论依据。

There was a first polar body which was still connected with the egg near the fertilizing sperm.

许多学者都证实了精子通过卵膜孔首先与该孔下面卵质膜一个特殊区域称为精子穿人部(印erm entry site)发生结合和融合，然后并人卵内。

The preparation process of self-holing polyimide with organosilicon block includes the following steps: 1 the first reaction of polyacid anhydride in functionality not lower than 2, silicon oil with 2 or more amino or imino groups and polyamine with 2 or more amino groups, and the second reaction with one or several kinds of added isocyanate with 2 or more isocyanate radicals to produce sol of polyamido acid containing organosilicon block; 2 solidifying the sol to obtain solid polyamido acid containing organosilicon block; and 3 imidonating the solid to obtain self-holing polyimide with organosilicon block.

本发明公开了一种有机硅嵌段自发孔聚酰亚胺的制备方法，该方法包括以下步骤：(1)有机溶剂中具有大于或者等于2的酸酐官能团度的多酸酐与具有大于或者等于2的胺基或亚胺基的硅油以及具有大于或者等于2的胺基的多胺反应，随后添加一种或多种具有含有等于或者大于2个异氰酸酯基的异氰酸酯反应，生成含有机硅嵌段聚酰胺酸的溶胶。(2)溶胶固化制成有机硅嵌段聚酰胺酸固体。(3)固体亚胺化，即得有机硅嵌段自发孔聚酰亚胺。

It is shown that the porous structure of the copolymers changes as a result of the treatment with different solvents.

结果表明，在不同的状态中，高交联共聚物的孔结构是不相同的，它们的孔结构会发生变化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。