片语
Thread tension support plate压线支板
thread tension gear线张力齿轮
universal thread tension通用线张力
electronic thread-tension control device电子式纱线张力控制器
electro-mechanical thread-tension control device电动式纱线张力控制器
Needle thread tension regulation面线张力调节
TIGHT THREAD TENSION线太紧
thread-tension control device纱线张力控制器
Needle thread tension面线张力