丙烷

The results showed that the yield of phenyl glycidyl ether was 96.8% when the mole rate of sodium phenolate and epichlorohydrin was 1.15:1, the mass ratio of ionic liquid and reactant 2:1, reaction temperature 70℃ and reaction time 2h.

结果表明，在反应温度为70℃，反应时间为2h，反应物苯酚钠与环氧氯丙烷的物质的量比为1.5：1，离子液体与反应物的质量比为2：1时，苯基缩水甘油醚的产率为96.8%。

In this paper, WAXD was used to investigate a series of liquid crystalline and non liquid crystalline sequential copolyester, which was synthesized from 1,10 decanediol, 2,2 bis(4 hydroxyphenyl) propane and the mesogenic monomer 2 methyl 1,4 phenylene bis(4 chloroformyl) benzoate.

应用广角X射线衍射对2，2－双（4羟基苯基）丙烷，1，10癸二醇与2－甲基－1，4－苯撑双（4氯甲酰）苯甲酸酯的一系列共聚酯进行了研究。

The pilot uses the propane burner to control how high or low the balloon flies. To go up, he or she turns up the burner to make the air in the envelope hotter. To go down, the pilot just lets the air cool down.

驾驶员会通过丙烷燃烧器来控制气球飞的高度，想要飞高时，他或她就会打开燃烧器加热气囊内的空气，若想要降低高度时，驾驶员只要让空气冷却下来即可。

As it opens, the pilot uses a propane burner to blow hot air into the envelope. The balloon then rises as it is inflated with the hot air until it is upright.

当气球充好气后，驾驶员会使用丙烷燃烧器将热气灌入气囊，当热空气渐渐增加，气球会慢慢的上升，到最后会完全竖立起来。

This involved placing a prill into the flame of a propane torch, and observing the colour of the vapourized product.

这涉及放置一个prill到的火焰丙烷火炬，并观察颜色的vapourized产品。

It is an expensive fuel but less so than either oil or propane which are imported products.

这是一次昂贵的燃料，但不是那么无论石油或丙烷是进口产品。

It's so much better than the results with propane gas.

它'这么多比丙烷气体的结果更好。

When I shoot at a propane tank I know that I can shoot it and that it's going to explode.

当我拍摄的一个丙烷罐，我知道我能投篮，并希望它会爆炸。

And this is what happens when lightning hits a propane tank.

这件事发生在闪电击中丙烷罐之时。

The fuel of the torch is propane, which is a common fuel which also comes with a low price.

燃料的火炬，是丙烷，这是一种常见的燃料，也与以低廉的价格。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷