丹东市郊鸭绿江公社贫下中农,在批林批孔运动中,发扬敢于革命的精神,结合学习外地经验,对塑料大棚骨架结构进行了“二改”,即改固定支架为活动支架;改多柱为少柱或无柱。实践证明,新结构大棚透光好,操作方便,可进行多次覆盖。 Dadong suburbs Yalu River commune poor poor middle peasants, in the Lin Chi Kong movement, to carry forward the spirit of daring to revolution, combined with the study of field experience, the plastic shed structure of the “two changes”, that is, to change the fixed bracket for the activities of support; Less or no column. Practice has proved that the new structure of light transparent shed, easy to operate, can be repeatedly covered.