... Firing pin retaining pin 击针固定销钉 firing pin aperture 撞针孔 floating firing pin 型号接纳浮动撞针 ...
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firing pin aperture
射针孔
以上为机器翻译结果，长、整句建议使用 人工翻译 。
However, the related research is rarely reported on the humidifying property of the centrifugal nozzle with firing pin type, high pressure and little aperture.
但当前对该类型喷嘴加湿性能的相关研究还较少见诸报道。
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