扣紧tightening
【生活】绷紧TIGHTENING
【运输】绷紧皮带tightening strap (strap retainer)
阴道紧缩术vaginal tightening surgery
重锤式张紧装置ballast tightening device【机】;weight tension device【机】
【运输】带链条的锁紧键tightening key with chain
卷筒式张紧装置drum tension device【机】;drum tightening device【机】
拉紧螺栓draw-in bolt【机】;tightening bolt【机】