ratio of strength to weight

Materials with high strength to weight ratio, low coefficient of thermal expansion and high wear and corrosion resistance.

它具有高的比强度，低的热膨胀系数和高的表面强度。

With nicer specific stiffness, specific strength and higher heat resistance, titanium alloy is the key material for high performance aero-engine to reduce weight and improve thrust-to-weight ratio. Thus it is widely used in fan, compressor and other components of modern aero-engines.

钛合金具有良好的比刚度、比强度以及较高的耐热性能，是高性能发动机减轻结构重量、提高推重比不可或缺的关键材料，因而在现代航空发动机风扇、压气机及其它构件中得到了广泛应用[1-3]。

The high strength-to-weight ratio of titanium is utilized to obtain the high tip speeds required for LH2 impellers and inducers.

高强度-重量比钛是利用以获取高尖端的速度所需的lh2叶轮和诱导。

Moreover, DSC results indicated that the equivalent reactant ratio gave rise to the complete chain-extending, and the highest molecular weight and tensile strength of the copolymer was present.

另外DSC结果发现，合成共聚物的原料配比对材料的结构和性能有影响，反应物以等摩尔当量配比时，样品的扩链反应最完全，相应的分子量也可能最高，同时抗张强度最高。