injection
/ɪnˈdʒekʃən/noun
1
- an instance of injecting or being injected注射; 注入：
painkilling injections
止痛剂注射
an injection of capital was needed.
需要注入资金。
1.1
- a thing that is injected注射剂, 针剂：
a morphine injection.
吗啡注射剂。
1.2
- mass noun the action of injecting注射：
the walls have been damp-proofed by injection.
墙壁已经过浇注进行了防潮处理。
1.3
- short for FUEL INJECTION.FUEL INJECTION的简称。
1.4
- Mathematics a one-to-one mapping【数】内射, 单射。
2
- mass noun the entry or placing of a spacecraft or other object into an orbit or trajectory（宇宙飞船等的）射入轨道, 入轨。
词源
late Middle English: from Latin injectio（n-）, from the verb inicere （see INJECT）.