波形圆犁刀的英文

• wavy disk colter

• 波形:    wave form; shape; wave patte ...
• 圆:    round; circular; spherical
• 犁刀:    coulter; skim cutter
• 圆犁刀:    circular slitting knife; coulter disk; disc coulter; disk colter; plow disk; rolling colter; rolling cutter
• 凹面圆犁刀:    concave disk colter; concave rolling disk colter