工学 工程水力学 释 drop 跌水 使上游渠道水流自由跌落到下游渠道的连接建筑物。
drop ①滴 ②下落，降落
数据库 数据库管理系统及其实现技术 释文 drop 撤销
- noxious gases in livestock housing
- NOx sensor
- NOx storage-reduction catalytic material
- NOx计
- noy
- Noyan
- Noyon Uul Cemetery
- Noyori asymmetric hydrogenation
- Noyori Ryoji
- Nozaki Hiyama Kishi reaction
- Nozaki-Hiyama-Kishi reaction
- Nozomi
- Nozomi probe
- nozzle
- nozzle aerodynamic parameters
- nozzle classification
- nozzle divergence angle
- nozzle governing
- nozzleless rocket motor
- nozzle loss
- nozzle plugging
- nozzle pressure losses
- nozzle process
- nozzle puncture
- nozzle steam distribution