spray rod的用法和樣例：
例句
- The coatings are sprayed onto the components being analyzed by using aerosol cans or compressed-air spray guns.
涂料是用按鈕噴霧罐或壓縮氣噴槍噴到所要分析的零件上去的。 - Theposition of the spray gun can be adjusted laterally and longitudinally by an adjustor.
利用文丘利原理，由壓縮空氣通過噴槍將石英砂高速噴射到模具型腔內使污垢清除干凈，灰塵由吸塵器吸除，石英砂回收重新使用。
