sub-exchange, unoccupied
[电学] 辅助交换,未被占用的、空闲的
考试词汇表
- Oil & Gas J.
- Oil of Niobe
- Oil of poppy
- Oil pressman
- Oil well rig
- Oil,Flaxseed
- Oil,Soy Bean
- Oil,Tea Tree
- Oil,Vaseline
- Oil-staining
- Oilite alloy
- Oils,Dietary
- Oils,Iodized
- Oils,Soybean
- Oitavén, R.
- Oituz, Pasul
- Ojailén, R.
- Okadiac acid
- Okanogan Ra.
- Okataina, L.