有为横割木纹而设计的锯齿的的英文

with teeth designed for cutting across the grain of wood

• 有为:    promising
• 横:    harsh and unreason ...
• 割:    cut; mow
• 木纹:    grain
• 设计:    devise; project; p ...
• 的:    4次方是 The fourth po ...
• 锯齿:    sawtooth; serratio ...