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1·As a bonus, in researching this little factoid I discovered a new word I hadn't known before; kerf. When you cut up a log into boards the thickness of your saw matters.

我在查询这个小词的时候，额外地发现了一个我以前不知道的新词：kerf .当你要把一根原木切割成一块块木板时，你的锯的厚度很关键。

2·That slot left in the wood after a saw goes through is called the kerf.

锯过木头后留下的锯缝就叫做kerf。

3·New clamping systems, low noise tooling, thin kerf saw blades, update cutters and their application were introduced in the paper.

本文将着重阐述刀具装夹、低噪声刀具、薄锯路圆锯片、新型刀具及应用。