highadj.高的；高尚的；高级的；高度的；全盛的adv.高；奢侈地；音调高n.高水平；高气压；（麻醉品带来的）快感high pitchedadj.高音调的(坡度陡的)

1. The production line adopts high efficiency extruder, swift net changer and screw plastic blowing head.
   生产线采用高效挤出机，快速换网，螺旋吹塑机头。