短语词组短语blade and spring assembly 释义刀口及弹簧组件肠活检容器部件continueditudinal blade spring 纵向钢板弹簧Spring blade 弹片blade control valve centering spring 铲刀控制阀定心弹簧spring blade ruling pen 弹簧笔舌鸭嘴笔spring blade knife 弹簧折合刀 返回 blade spring