1560s, from Middle French ejection and directly from Latin eiectionem (nominative eiectio) "a casting out, banishment, exile," noun of action from past participle stem of eicere (see eject). The jet pilot's ejection seat (also ejector seat) is from 1945.
雙語例句
1. Radioactivity is the ejection of particles or radiation from the nucleus.
放射性是原子從核中射出粒子或輻射的現象.
來自辭典例句
2. Most of the crater is formed by ejection.
大多數的彈坑是由于把泥土拋出而形成的.
來自辭典例句
3. A rocket is propelled by the ejection of a portion of its mass to the rear.
火箭是靠向后噴射其部分質量而推進的.
來自辭典例句
4. Howeer, ejection fraction and left atrial volume index stayed the same.
但是, 射血分數及左房容積仍然不變.
來自互聯網
5. Here will be a double ejection for forward and receding.