What it really means is "no moldboardplow" and because of that we are supposed to believe that farmers are controlling soil erosion.
由于它真正指的是“非犁板耕耘”，而且我们总认为农民控制土壤侵蚀。
2
This paper proposes an optimal method for plow bottom moldboard design by taking the power consumption of the objective and the feasible region of the geometric parameters for boundary constraints.
本文提出了以功率消耗为目标函数、犁面几何参数的可行范围为约束条件的犁面优化设计方法。
3
A plow equipped with a double moldboard that turns up the soil on each side of the furrow, often having an attached drill for seed planting.