smooth jaw

• 无齿(咬合)

smooth jaw的用法和样例：

例句

1. Broken pipes adopt a hacksaw or a saw without teeth.The size of pipe needing to cut should be exact.Put pipes on the center of pressure jaw, and keep fractures even.
   断管采用钢锯或无齿锯，需断切的管子尺寸准确，将管子置于压力钳口中心卡紧，断口平齐。