城西湖农场地势低洼,土质粘硬板结。十几万亩的旱粮作物的田间开沟排水,需要大量劳力,成为老大难问题。前两年改制了铧式开沟犁,开沟后两侧积土,沟内余土较多,影响排水,并需大量人力清沟。而且沟宽,影响收割机械作业和车辆运行。鉴于这种情况,2006部队修理所的同志们,在批林批孔运动的推动下,经过一年多的反复实践,试制成裁集式滚齿抛土开沟 West Lake farm low-lying, soil sticky hard knot. Tens of acres of dry grain crops in the field ditching drainage, requiring a lot of labor, become a chronic problem. The first two years of restructuring the type of plowshare, after both sides of trench ditching, more dirt in the ditch, affecting the drainage, and a lot of manpower to clear the ditch. And the groove width, affecting the harvesting machinery operations and vehicle operation. In view of this situation, comrades from the Troop Repairing Department in 2006, driven by the pro-Lin campaign, have tried their best to make a set of hobbing and pitching ditches after more than a year of trial and error