knife blade短语⁷⁷⁵⁷⁵ 基本英英例句 刀片 Noun: the blade of a knife Unlike any other design, the stem head slides inside a circular cavity on the stem guides in the body and bonnet, and is connected to the knife blade by a taper slot. 与其它结构不同，这种阀门的阀杆头部在圆形空腔内滑动，由阀体和阀帽内部引导运动，通过锥形槽连接到闸刀上。 h6688