圆犁刀柄的英文

• colter shank

• 圆:    round; circular; spherical
• 犁刀柄:    coulter shank
• 圆犁刀:    circular slitting knife; coulter disk; disc coulter; disk colter; plow disk; rolling colter; rolling cutter
• 犁刀柄:    colter arm; colter shank
• 凹面圆犁刀:    concave disk colter; concave rolling disk colter