短語詞組短語circular spiral ring packing 圓形螺旋圈填料Circular strengthening ring 圓環(huán)型加強圈circular stiffening ring 加強環(huán)a circular planar ring 平面圓環(huán)circular distributor ring [電]集電環(huán);配電環(huán);環(huán)形整流子circular planar ring 平面圓環(huán)circular -ring energy dissipater 圓環(huán)耗能器non -circular elastic ring 非圓彈性環(huán)circular sprinkler ring -shaped sprinkler 環(huán)形噴灌機 返回 circular ring