| 1. | The infrared dichroism of a particular vibration of known origin has been used to give valuable information about molecular orientation .
已知基因特有振动频带的红外二色性，可以提供分子定向的有价值资料。 |
| 2. | Likewise, diffusion-controlled processes such as gas permeability are all dependent, to some extent, on molecular orientation and crystallinity .
同样，扩散控制诸如透气在一定程度上取决于分子排列和结晶度。 |
| 3. | While polyester fiber is subject to different draw ratio and heating temperature during high speed spin - fling , its original molecular orientation and crystallinity of polyester fiber are changed
摘要聚酯在高速纺丝过程中，施以不同的拉伸倍数与温度，会造成纤维结晶度与取向度的变化，从而影响纤维的物理性能。 |
| 4. | High - temperature manufacturing can speedily fill up the mold and hence reduce molecular orientation . it can also increase the properties of products , but it lengthens the condensation time and increases the injection cycle
高温加工可以快速填模，减低分子定位，提高产品物性，但冷却时间延长而增加注射周期。 |
| 5. | When polyester fiber is subject to different draw ratio and heating temperature during high speed spinning , it will result in changes of the original molecular orientation and crystallinity of the fiber , thus affecting its physical properties
摘要在高速纺丝过程中对聚酯施以不同的拉伸倍数与温度，会造成纤维结晶度与取向度的变化，从而影响纤维的物理性能。 |
| 6. | A higher mold temperature can increase the viscosity of melting plastics to run inside the mold . injection in low pressure can also fill the mold for a more perfect product surface and can also reduce molecular orientation for quality properties of the product
较高模温可促进溶胶在模内的流动，低压注射亦能填模,有更完美的产品表面，也能减低分子定向molecular orientation .使产品有更优良的物性 |
