变冷

Maybe the Earth became cold.

也许地球变得很冷。

The treehouse they lived in was a good home but sometimes it was very cold and wet inside.

他们居住的树屋是一个好家，但有时候里面会变得很冷，很潮湿。

When it's cold, the arrector muscle pulls the hair up. The duct to the sweat glands gets small to conserve heat.

而当很冷的时候，竖毛机会使头发竖起来，汗腺的输送管也会变小来聚集热量。

Puffed PTFE board has many fibrous coriaceous structure inside,which makes the material has better performance in anti-cold flow and anti- creep ,at the same time, greatly strengthens the ability of gasket in anti-actual effects.

它的内部多项纤维强韧结构，使板材具有更好的抗冷流和蠕变性能，同时大大增强了垫片的抗实效能力。

By dilatometric test, Laboratory experiments were...

利用膨胀法在Thermecmastor-Z型热/力模拟试验机上进行实验室实验，测定了研究钢种在不同的中间保温工艺及一定变形工艺条件下的过冷奥氏体连续冷却转变曲线；对每个试样进行了打磨、抛光、腐蚀，在光学显微镜下观察其组织，研究了在不同中间保温工艺下组织的变化情况；利用所建立的CCT曲线研究了一定变形工艺条件及不同保温工艺对其相变行为及组织的影响，对其影响规律进行了分析。

By the method of dilatometric change,combining with microscopic test and hardness measurement,different expanding curves of continuous cooling transformation were measured at different cooling rate,and CCT diagram was obtained by using DIL805A thermal expansion fast phase transition instrument.

利用膨胀法，结合金相法和硬度法，在DIL805A热膨胀快速相变仪上测定了该钢在不同冷速下连续冷却时的热膨胀曲线，获得了该钢的连续冷却转变曲线；研究了该钢连续冷却过程中奥氏体转变过程与组织变化。

The paper introduces the technologies to recover dilute ethylene in FCC dry gas from refinery,including pressure swing adsorption,conjugation absorption separation,intercooling oil absorption,advanced recovery system,and membrane separation,and makes a comparison among the technologies.

介绍了炼厂催化裂化干气稀乙烯的回收技术，包括变压吸附、配合吸收分离、中冷油吸收、先进回收系统、膜分离技术，并对这几种技术进行了比较。

On the contrary, some positions of roche moutonnee are not at the pressure-melt point, and the temperature of ice-base has cold and temperate alternately. They belong to the pluck-abrasion zone.

形成羊背石的部位与之相反，一些地方没有达到压力融点，冰底温度有冷、温的变替，是拔蚀-磨蚀作用带。

A new heat storage material (CH3COONa·3H2O) with a phase change temperature of 55℃ and a sub-cooling temperature of less than 2℃ was developed. This sodium acetate trihydrate based material was obtained by a number of experiments for selecting proper nucleation catalysts and suspension mediums.

以三水醋酸钠(CH3COONa·3H2O)为蓄热基质，通过大量实验，遴选合适的抗沉淀剂和成核剂，配成相变温度约55℃、过冷度小于2℃的蓄热材料。

The unetched specimens were instantly observed by QUANTA-400 environment scanning electron microscope,scanning tunnel microscope and optical microscope,respectively.The results show that the surface relief will be found during the bainite transforming and will be in the shape of "Λ".The formation of bainite surface relief is to ...

不经浸蚀，分别采用QUANTA-400环境扫描电镜、Nanofrist-1000扫描隧道显微镜和光学显微镜观察试样，发现，贝氏体相变过程中产生了表面浮凸，表面浮凸为&帐篷形&，并认为贝氏体表面浮凸的产生，是由于过冷奥氏体转变为贝氏体时比体积增大，且试样表面层体积膨胀不均匀造成的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。