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- But the positive electrons produced by aluminium under the action of a source of alpha rays continue to be emitted for some time after removal of the source. The number of electrons emitted decreases by half in three minutes. 但是，在射线动能源作用下铝产生的正电子在动能源撤走后的相当长时间里仍继续被排斥出来，且排出的电子数量在3分钟后减少一半。
- Surgical removal of part or all of the uterus. 子宫切除术将子宫的全部或部分通过外科手术切除
- Surgical removal of all or part of a lung. 肺切除术，肺部分切除术对整个或部分肺的外科手术切除
- He consented to the removal of the flags. 他同意撤走旗帜。
- Surgical removal of part of the iris of the eye. 虹膜切除术手术切除部分虹膜
- Surgical removal of a nerve or part of a nerve. 神经切除神经或其一部分的外科节除手术
- Our ultimate objective is the removal of all nuclear weapons. 我们的最终目标是消除所有核武器。
- Loss or removal of normal pigmentation. 褪色丧失或转移正常的着色
- The assignment of electrons is somewhat arbitrary. 电子的分配多少带有武断性。
- Oxidation involves the transfer of electrons. 氧化过程涉及电子的转移。
- An electric current in metal is caused by the movement of electrons. 金属内电流是由电子运动引起的。
- A slight taper given a die to facilitate the removal of a casting. 转子嵌在模具上的细长拨销，使铸件容易被切割
- Atoms are made up of electrons and protons. 原子由电子和质子构成。
- Surgical removal of all or part of the urinary bladder. 膀胱切除术全部或者部分膀胱的手术切除
- The number of electron pairs an atom can share with other atoms. 共用电子对数，共价一个原子与其他原子共用的电子的对数
- In a radio tube there is a source of electrons. 在电子管中，有一个电子发射源。
- Surgical removal of all or part of the vagina. 阴道切开术阴道部分或全部移植的外科手术
- Sharing of electrons and form a strong covalent. 彼此分享各自的电子而形成了坚固的共价键
- Surgical removal of all or part of the urethra. 尿道切除术切除尿道全部或部分的外科手术
- Surgical removal of part or all of the colon. 结肠切除部分或全部切除结肠的外科手术
