...a narrow pointed part that sticks out of an object 齿状部份；齿 the teeth on a saw 锯齿 to do sth that gives you your first experience of a particular type of work 从…中获得初步经验；初次涉足 .
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The name stems from the waveform's appearance on a scope; it looks like the teeth of a hand saw.
锯齿波的名字来源于示波器上其波形的形状，它看上去就像是手锯的齿一样。
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。
This would include a crosscut saw, ax, sledgehammer, chisel, file to ensure the saw is kept sharp, and crosscut saw repair kit to fix teeth on the blade.
这包括了一把横切锯子，斧子，大锤，凿子，锉刀，得保证锯子锋利，并要用横切锯子维修工具修正锯叶。
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