扁平丝是经特殊工艺纺练而成的截面为扁平状的新型维卡纤维。
介绍了涤纶FDY扁平丝“-”型喷丝板的工艺设计，主要讨论了纺丝温度、纺丝速度、侧吹风等工艺对纤维扁平度指标影响。
In this article, the design of "-"spinneret of Polyester FDY was introduced. The effect of spinning temperature , spinning speed and quench process to the flat target of the filament were discussed.
藻丝的营养细胞是扁平的，具异形胞。
The filament possesses oblate cell for nutrition and heterocyst.
绳绒、扁平纱线、工业丝和地毯丝等。
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