Hard elastic polypropylene hollow fiber were prepared from polypropylene melt crystallized under stress field.
通过应力场下聚丙烯熔体结晶制备出硬弹性聚丙烯中空纤维。
And polyethylene resin structures have great influence on hard elastic structures and properties of their cast films.
其中树脂结构对流延基膜的硬弹性具有重要影响。
The formation and the structure of the unique piled lamellae rows in hard elastic polypropylene have been studied by WAXD and SAXS techniques.
用广角X射线衍射、小角X光散射等手段对硬弹性聚丙烯中排状堆积片晶的形成及结构进行了研究。
Hard elastic polypropylene fibre samples were made by melt spinning isotactic polypropylene with melt indexer, followed by fast winding and annealing.
将聚丙烯树脂在熔融指数仪上熔融挤出、快速牵伸并退火处理，制得了硬弹性聚丙烯纤维。
The influence of different molecular weights, crystallization behavior and branched chain structures on hard elastic behavior of PE cast films was investigated.
我们分别考察了不同分子量大小、不同结晶行为和不同支链结构对PE流延基膜硬弹性的影响。
The results show that the apparent density of hard elastic polypropylene increases with a lower melt temperature, or a higher draft ratio, or a higher air blasting speed.
结果表明，熔体温度下降、所受拉伸比增加或冷却风速度升高均可使表观密度增加。
The orientation behaviour of molecular chains of hard elastic polypropylene(HEPP) film was investigated on the uniaxial stretching by polarized IR Vibration-Mechanical Spectroscopy.
本文用力学-振动光谱研究了硬弹性聚丙烯（HEPP）晶区和非晶区分子链在拉伸时取向的变化。
Hard elastic materials are a class of crystalline or non-crystalline polymers produced under special processing conditions, which show high modulus and high elasticity under very low temperature.
硬弹性材料是结晶或非结晶聚合物在特定的条件下加工而形成的，这类材料表现出高弹性、高模量和突出的低温弹性。
In the theory of elastic thin plates, to solve the problem of rectangular overhanging plates with complicated boundary conditions is very hard for long.
对于具有复杂边界条件的矩形外伸板，在弹性薄板理论中是一个较难解决的问题。
I made the casing wider than I would normally because the thick seams are hard to get the elastic past.
我的外壳通常会比我更大，因为厚煤层很难得到弹性过去。
The hard non-elastic atactic copolymer with methyl methacrylate as main component consists of methyl methacrylate and monomer capable of copolymerizing with it.
以甲基丙烯酸甲酯为主的硬质非弹性无规共聚物由甲基丙烯酸甲酯和能与其共聚的单体组成。
The pressure cylinder contacts to the elastic sleeve, so that one gap is formed between the transfer printing cylinder and the pressure cylinder so some hard object to pass through.
该压力滚筒对应接触于该转印滚筒的弹性套筒，在该转印滚筒及压力滚筒之间形成一间隙，如此一硬质物体可通过该间隙。
The pressure cylinder contacts to the elastic sleeve, so that one gap is formed between the transfer printing cylinder and the pressure cylinder so some hard object to pass through.
该压力滚筒对应接触于该转印滚筒的弹性套筒，在该转印滚筒及压力滚筒之间形成一间隙，如此一硬质物体可通过该间隙。
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