气孔

Porosity is the result of gas in the metal.

气孔是金属中的气体存在的结果。

In addition, the relationship between porosity and partial pressures of mixed gases was obtained.

同时也获得了Gasar凝固试样的气孔率随气体分压变化而变化的规律。

The results show that four kinds of activating fluxes used for getting rid of welding porosity is effective.

结果表明，所选用的四种活性剂对于消减钛合金焊接气孔都是有效的。

A little pumice and alcohol will take care of the unfilled grain.

对于没有填好的木纹气孔，用一点浮石粉和酒精就能很好解决。

Diurnal changes of Pn and environmental factors (photosynthetic available radiation and air temperature and relative humidity) and physiology factors (stomatal conductance and transpiration rate and intercellular CO2) in leaves of puna chicory were measured using CI-340 portable photosynthesis system.

利用CI-340便携式光合仪，测定了普那菊苣叶片净光合速率和环境因子（气温、光合有效辐射、空气相对湿度）、生理因子（蒸腾速率、胞间CO2浓度、气孔导度）的日变化；通过回归和通径分析，考察了影响因子对净光合速率日变化的影响。

Leaves quadrangular in cross section, equifacial or subequifacial, all surfaces similar in color, stomatal lines present and almost equal in number on each surface.

叶四棱在横断面上，equifacial或，在每个表面上在数字上颜色，气孔线宿存和几乎等长相似的全部表面。

Globular, non-dendritic microstructure is quickly and efficiently formed and enables the partially solidified slurry to fill the die quiescently with minimal porosity.

球状、非树状的显微结构快速有效地形成并使部分凝固的、有最少气孔的铝浆平稳地压射到模具中。

Duchesnea indica、Ranunculus repens、Potentilla flagellaris、Glechoma hederacea have the charactistic of sprouting early in the spring and growing rapidly.

叶片的解剖结构、气孔密度和光合曲线都能很好的反映植物的耐荫性，而叶绿素含量及叶绿素a/b可以作为一个参考指标。

The strengthening effect is attributed to recrystallization and the shape of pores during heat-treatment at 1800℃.

在1800℃真空热处理过程中发生的碳化硅再结晶以及气孔形状的变化，是其强度较高的主要原因。

The mode field of photonic crystal fiber structured with hexagon symmetry hole cladding was analyzed by coupled-mode, and the effective indexes of base mode of different wave length were got. The characteristics of this photonic crystal fiber grating were computed and simulated by coupled-mode method and transmission matrix method. Moreover, the differences were compared between conventional fiber grating and photonic crystal fiber grating on their reflection spectrum and delay.

利用多极法对包层空气孔为正六边形对称结构光子晶体光纤的模式场进行了分析，计算出不同波长下基模的有效折射率，结合使用模式耦合理论和传输矩阵法对基于光子晶体光纤的布拉格光栅特性进行了计算和仿真，对比了常规单模光纤所成光栅与相同光栅周期的光子晶体光纤布拉格光栅反射谱及时延特性之间的差异。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！