... nozzle needle；喷嘴针阀 nozzle needle stem；喷嘴针阀杆 nozzle nut；喷嘴螺帽 ...
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nozzle needle stem
喷嘴针杆
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The needle valve can be closed through the rotation of a needle stem, and the oil cleaning device can also be driven to lift to clean out carbon deposit in the nozzle.
通过针阀杆的旋转即可以关闭针阀 又可以带动清油器升降，清除喷嘴中的积碳。
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