气孔

In order to prolong the life-span of fire-proof material, Besides guaranteeing the quality, during construction,we should pay attention to the water amount, curing condition and air vent setting, during kilning period, baking-heating up curve should be set down according to refractory performanc...

要延长耐火材料的使用寿命，除了保证耐火材料本身质量外，施工时应注意加水量、养护和排气孔的设置；烘窑时应根据耐火砖的性能合理制定烘烤升温曲线并控制升温速度(通常为30~50℃/h)，在冷窑升温时要尽快通过60~295℃温度区，以防氧化镁的水化；在正常生产中，要维持工况稳定，保护好窑皮，避免系统频繁开停等。

At least one source of the corrosion is the small amount of outgassing through the battery vents that takes place when the battery is in use.

蓄电池在使用过程中会产生一些通过蓄电池的通气孔排出的腐蚀性气体，这些气体是导致上述腐蚀现象的原因之一。

The primary resistances for CO2 diffusion are thought to be at the stomata and at photosynthesizing cells via a combination resulting from resistances of aqueous solution as well as the plasma membrane and both outer and inner chloroplast membranes.

CO2扩散速率的主要限制因素不仅与气孔和光合细胞中它的水溶性有关，还与质膜和叶绿体内外膜有关。

The mechanism of formation and distribution of pores was discussed.

同时分析了气孔的形成机理与分布原因。

He and his team have identified proteins that control the tightening of a plant's pores.

他和他的研究小组鉴别出了控制植物气孔紧缩的蛋白质。

The material contains a large number of pores whose sizes are about 300～500 μm.

所研制的材料中含有大量的气孔，其孔经大概为300～500μm。

The tensile specimens all ruptured in the fusion zone and the porosities were absent.

拉伸试件的破断位置皆位於焊道区，且断口皆无气孔存在。

The results showed that ABA concentration in xylem sap in the drying plants was quintupling of that in witting plants,and became duplicate with 0.12 g·cm-3 increament of soil bulk density.

生长在混合容重(一边为1.20g·cm-3，另一边为1.45g·cm-3)土壤上的植株中，ABA浓度和气孔导度与全部根系处在高容重土壤中的植株接近。

Leaf margin of leaves not revolute or only very slightly recurved; stomatal bands entirely visible.

叶不外卷或下弯的略的只的叶缘；完全可见的气孔带。

There were very important functions of stomatal density, content of proline and activity of SOD hi resistant rues black spot.

月季抗黑斑病性是气孔密度、脯氨酸含量及几种酶综合作用的结果。

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！