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在熔融纺丝过程中,生产的聚酯(PET)长丝的品种取决于纺丝速度。在纺速低于1800m/min时生产的是低取向丝(LOY),
During melt spinning, the variety of polyester (PET) filaments produced depends on the spinning speed. Produced at a spinning speed of less than 1800 m / min is a low orientation yarn (LOY)