小孔

Since photoemissive materials are very inefficient, the time that the pinhole has to look at the point source in order to collect enough electrons tends to make image dissectors rather slow digitizers.

由于光电发射材料效率是非常低的，要收集到足够的电波，解析器背后的小孔发光就为不得不依赖于图像的点源，这使图像解析器成了非常慢的数字转换器。

The pinhole is a useful refracting room accessory because it can provide an estimate of potential acuity with optical correction.

1小孔试片是验光室有用的附件之一，因为它能预计可采用光学矫正的潜在视力。

Porcelains are loaded and fired in the large sagger and charcoal is put into the separation between the sagger and the outer refractory bricks. The separation is locally Called "fire chamber".

匣底垫四块耐火砖，在大匣的外侧一定距离处砌耐火砖圈体，并在底部开几个孔(以炉体大小而定小孔的多少，俗称&爬火眼&)，用于爬退木炭来降低温度。

Some conclusions are drawn which by analyzing the experimental data.There are seriate pores with continuous diameters in the coal, some of which are fracture-type.The pore volume of the coal is mainly...

分析表明，大同煤具有连续的完整的孔系统，且部分孔为狭缝毛细孔；孔体积主要由大孔和中孔构成，比表面积主要由小孔和中孔构成；随着颗粒粒度的减小，煤粉的孔隙结构发生变化，致使比表面积和孔容积均增大，平均孔直径减小。

In higher concentrations, it can block the tiny holes in turbine blades and jet combustion chambers through which air and fuel pass, potentially snuffing out an engine.

更高浓度的火山灰能阻塞涡轮叶片中的小孔及空气和燃料经过的喷气燃烧室，有可能毁坏引擎。

Once the cells are there, they take up temporary residence inside spongelike holes within the polymer, allowing time for the cells to become highly active.

一旦树突状细胞被吸聚过来，它们将在聚合体中的海绵状小孔内短暂驻留至强活性状态。

Under the optimum conditions of n: n=40, mass percentage of ZrO2 18%, temperature 400℃, m m=0.02 and reaction time 0.5 h, the conversion was 91.2% and the yield of liquid products was 83.6%. Compared with the results obtained by thermal pyrolysis and catalytic pyrolysis on HZSM-5, ZrO2/Ti-MCM-41 was of better catalytic activity and higher yield of liquid products, and was especially suitable for the pyrolysis of sterically hindered polymers such as PP.

结果表明，n：n=40，ZrO2负载质量分数为18%的ZrO2/Ti-MCM-41，在反应温度400℃，m(ZrO2/Ti-MCM-41)：m=0.02，反应时间30min的条件下，PP的转化率可达91.2%，液体产物的收率为83.6%，该结果优于热裂解及传统的HZSM-5小孔分子筛催化剂的催化裂解结果。

The subpleural arteriole and its branches were short. The subpleural capillary meshes were sparse and web-like, and small holes made of microvessels were found occasionally.

胸膜下微动脉及其分支较短，胸膜下毛细血管网呈现稀疏的网络状，偶尔可见由微血管形成的&小孔状&结构。

The following plastic wastes, i.e., polyvinylchloride cable waste, polyethylene cable waste, used "Trabant" car bodies (polyester- and phenolic resins) were mixed with old motor oil, industrial waste oil, and chlorobenzene from waste oil refining processes, and subsequently subjected, in autoclaves, totemperatures up to 500oC and pressures of 20 MPa using disposable catalyst system of slurry phase hydrogenation.

下面的塑料废物，比如聚氟乙烯线状废物，聚乙烯线状废物，使用&随体&汽车车身与旧机油、工业废油和氯苯从废油精炼出来，随后在小孔中使用泥浆阶段加氢的一次性相位加氢系统加热到500摄氏度和20M帕的压强。

By means of trepanning drilling a tiny hole was acquired, in which the diameter of entry was 240μm, the diameter of exit was 233μm ...

试样材料选用45#钢，壁厚为0.5mm，打孔形式采用环切法，最终得到入口240μm、出口233μm、圆度小于10μm的小孔。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。