tightenvt.使紧；勒紧；固定vi.变紧tightened pads压绳板tightening key斜扁销调整楔,锁紧键tightening nut拉紧螺母tightening seal紧密封tightened death勒死tightening wire拉线tightening flap密封用衬垫tightening bolt拉紧螺栓,风口拉杆tighten a screw拧紧螺丝tighten my beltvi.勒紧腰带(忍饥受寒；节衣缩食；减少开支)

chain tightener链条张紧器

belting tightener皮带张紧轮

belt tightener皮带张紧装置,紧带器,皮带伸张器

bolt tightener螺栓绞紧器

tightener sheave皮带长紧轮,张紧滚轮