tightenvt.使紧;勒紧;固定vi.变紧
tightening device扣紧装置
Tightening moment拧紧力矩
tighten the screw把螺丝拧紧
tightening supply供货紧张
tighten your beltvi.勒紧腰带(忍饥受寒;节衣缩食;减少开支)
tightening torque拉紧转矩
tighten up a screw拧紧螺丝
tightening process拧紧工艺
tightener sprocket张紧链轮
tightening control拧紧控制