词族 · RFD
词形变化
英语词源
- RFD
- also R.F.D.; 1882, American English, it stands for rural free delivery.
权威例句
- 1. Pete Waters, RFD Number 1 , Chesterton.
- PeteWaters, Chesterton乡村免费邮递路一号.
- 2. The Reverse Flow Diverter ( RFD ) is one of the key components affecting the liquid - delivered efficiency.
- 可逆流体换向装置是决定气动式脉冲液体射流泵的流体输送效率的关键组成部件.