injector

n.

注射器；喷嘴；

fuel injector燃料喷射器

water injector喷水装置

1. The small lower hole is that for the injector.
   下方小洞用于装喷嘴。
2. So I am fortunate to meet the affable owner of a carwash in Zhuzhou who comes to my rescue by cleaning the fuel injector.
   幸好我遇到在株洲的一位洗车师傅，他通过清洗燃料注射器帮我解决了问题。

Injector
Hypodermic jet injector
Single use disposable needleless injector
Anaphylaxis and epinephrine auto-injector training: Who will teach the teachers?
New photoelectric injector design for the Los Alamos National Laboratory XUV FEL accelerator ☆
Supersonic Combustion Experiments with a Cavity-Based Fuel Injector
Highly spin-polarized room-temperature tunnel injector for semiconductor spintronics using MgO(100).
Shaft automatic production line design and implementation of marine injector valve
Merging zones in flow injection analysis : Part 1. Double proportional injector and reagent consumption
Analytical study for atomization of biodiesels and their blends in a typical injector: Surface tension and viscosity effects