美[??d??k??n] 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.
公模兩段開模,這個地方先退.
來自互聯網
1.the act of expelling or projecting or ejecting
2.the act of forcing out someone or something;
the ejection of troublemakers by the police
