针对许多原DTY机无定长定重装置的情况，在DTY机上加装定长定重落筒系统，并应用于涤纶长丝生产中。
Aiming at the doffing system with fixed length and weight was added in DTY machines, and applied it to the polyester filament production.
针对许多原DTY机无定长定重装置的情况，在DTY机上加装定长定重落筒系统，并应用于涤纶长丝生产中。
Aiming at the doffing system with fixed length and weight was added in DTY machines, and applied it to the polyester filament production.
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