A rigid polyurethane foam for the roof trimming is prepared, and the moulding method is introduced.

The polyurethane foam has found more and more extensive application because of its excellent adiabatic performance.

聚氨酯泡沫由于其优异的绝热性能,获得了越来越广泛的应用.

One kind of the hollow bead reinforced polyurethane foam composite was prepared.

制备出一种空心微珠增强聚氨酯泡沫复合材料.

Ignitability test for polyurethane foam in slab or cushion form.

板状或垫状聚氨酯泡沫体的点燃性试验.

The factors influencing the thermal insulation of soft polyurethane foam were investigated.

研究了软质聚氨酯泡沫塑料隔热性能的影响因素.

Garden path sentences are caused either by lexical ambiguity or syntactic ambiguity.

花园小径句式的产生或是词汇歧义所致,或是由句法歧义带来.

Structural concrete uses, almost exclusively, hydraulic cement.

结构混凝土大部分须使用专用液压水泥.

The proton has a charge and the electron a negative charge but the neutron has neither.

质子带正电荷,电子带负电荷,中子两种电荷都不带. (省译三个定冠词)

The difference was determined by the surface negative charge amount of different clay particles.

这种差异性取决于粘土颗粒表面负电荷量大小.

For the problem the negative gate drive adopted , but thethe general negative charge pump circuit.

因此设计了一种简化负压栅极驱动电路, 电路简单,工作可靠.

One end of each molecule had a charge and the other end had a negative charge.

每个水分子的一端带上正电荷,而另一端带上负电荷.

A positive and a negative charge attract each other.

一正一负电荷吸引.

Oxygen , necessary for human life, carries a negative charge.

人类赖以维生的氧气, 也携带负电荷.

The surface of the soil particle will have a negative charge.

土粒表面会有负电荷.

But don't you worry : I've still got a good chance of winning back the money.

可是你不用着急,还可以翻本的.

Yes, I think there's a good chance of getting back sixty per cent.

我们放出去的账, 总有六成可以收回.

We have a good chance of winning the game.

我们很可能赢得这场比赛.

You've given away a good chance of success.

你失去了一次成功的良机.

Ithas been proved in practice that channel wave surve has a good prospect in the area.

表明槽波勘探技术在该区具有良好的应用前景.

So, half-suspended structure is a structure system which has a good prospect for development . 2.

半悬挂结构是一种具有发展前景的结构体系.

Production practice shows that alloy plating has good prospect.

多年的生产实践表明其具有良好的发展前景.