ejection是什么意思？

ejection

英[ɪ'dʒekʃn] 美[ɪˈdʒɛkʃən]

• n. 喷出，排出物，抛出，出坯，射出；

复数：ejections;

动词：eject;

例句

• The cometary ejection play a crucial role in formation and evolution of the meteoroid stream. 彗星的喷发速度在流星群的演化过程中起着重要作用.
• Rapid prototyping manufacturing in the ice pattern is actualized through FDM and separate ejection. 采用FDM方法、离散式喷射实现了冰模快速成形.
• A rocket is propelled by the ejection of a portion of its mass to the rear. 火箭是靠向后喷射其部分质量而推进的.
• Most of the crater is formed by ejection. 大多数的弹坑是由于把泥土抛出而形成的.
• Radioactivity is the ejection of particles or radiation from the nucleus. 放射性是原子从核中射出粒子或辐射的现象.
• Ejection murmurs begin after S 1 and are usually crescendo - decrescendo ( diamond - shaped'), ending before S 2. 喷射音始于S1后,通常有渐强 - 渐弱特征, 并于S2前结束.
• Objective To Validte the Yeliabil of left ventricle ejection fraction ( LEF ) measured by reconstructed impedance cardiography ( RICG ). 目的验证重建心阻抗图测量左室射血分数 ( LEF ) 的可靠性.

柯林斯高阶英汉双解学习词典释义

• VERB
  驱逐;把…逐出
  If you eject someone from a place, you force them to leave.
  例句
  Officials used guard dogs to eject the protesters... 官员们用警犬驱散抗议人群。 He was ejected from a restaurant. 他被逐出餐厅。
• VERB
  弹出;喷出;射出
  To eject something means to remove it or push it out forcefully.
  例句
  He aimed his rifle, fired a single shot, then ejected the spent cartridge. 他用步枪瞄准，射出一枚子弹，然后退出空弹壳。
• VERB
  （通常指飞行员从即将坠毁的飞机中）弹射出来
  When a pilot ejects from an aircraft, he or she leaves the aircraft quickly using an ejector seat, usually because the plane is about to crash.
  例句
  The pilot ejected from the plane and escaped injury. 飞行员从飞机中弹出，安然无恙。

英英词典释义

• Noun
  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""the child's expulsion from school"

行业词典

• 体育： 驱逐出场；
  医学： 排出；排出物；
  机械： 脱模；压制后从阴模中脱出压坯的操作。；