1. 漏失：drop out 漏失 | dropping 漏失 | drum 鼓

2. 滴下：dropping voltage generator 降压发电机 | dropping 滴下 | dropping 挂锚(锚离底

3. 是否从起始高度落下：Degenerates = 该抛射体是否在飞行时减弱. | Dropping = 是否从起始高度落下. | Level = 该抛射体是否始终处於同一高度.例如:鱼雷.

4. 滴;下降;滴下物;空投：dropping sub 投球短节 | dropping 滴;下降;滴下物;空投 | dropsonde 下投式探空仪

adj

1. coming down freely under the influence of gravity

e.g. the eerie whistle of dropping bombs
falling rain

Synonym: falling