查询词典 drop behind

black drop：[天]黑滴, 黑跌落(黑系带)

beam drop [电磁]波束降落. | black drop [天]黑滴, 黑跌落(黑系带). | blossom drop 落花(现象).

drop bolt：活节螺栓

drop annunciator 吊牌通报器 | drop bolt 活节螺栓 | drop bottle filler 滴剂装瓶机

drop bolt：吊螺栓

drop bed trailer 下落式拖车 | drop bolt 吊螺栓 | drop bolt 活节螺栓

drop bolt：活节螺栓,舷窗诳峖Q螺栓

落下(下水) drop | 活节螺栓,舷窗诳峖Q螺栓 drop bolt | 开底门,开口底 drop bottom

drop a bomb：引起轰动, 引起惊慌

drop a bomb 引起轰动, 引起惊慌. | drop a brick 出丑, 失言. | drop a bucket into an empty well 空井打水, 徒劳无益.

drop bottom：活底

drop ball 落锤 | drop bottom 活底 | drop forging 落锤锻造

drop bottom：开底门,开口底

活节螺栓,舷窗诳峖Q螺栓 drop bolt | 开底门,开口底 drop bottom | 回降烟道式锅炉 drop flue boiler

drop bottom：落地门,炉底门,开底门,开口底

"drop bar","接地棒" | "drop bottom","落地门,炉底门,开底门,开口底" | "drop bottom cupola","开底熔铁炉"

drop bottom car：底卸式车

drop bottom cage 落底式罐笼 | drop bottom car 底卸式车 | drop cage 翻转罐笼

drop bottom car：底开门车

drop bottom bin 活底箱(与叉车配合使用). | drop bottom car 底开门车. | drop box [纺]升降梭箱.

seal oil pressure：密封油压

"seal of bearing ","轴承密封" | "seal oil pressure ","密封油压" | "seal ring ","密封环,止漏环"

osteographer：骨论学家

choreographer舞蹈动作的设计者 | osteographer骨论学家 | glyphographer电刻者