partial-flow dilution sampling system
...部分流稀释采样系统；磨合 [gap=941]s: power machinery and engineering; diesel engine; particulate matter emission; partial-flow dilution sampling system; running-in ..
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partial-flow dilution sampling system
部分流动稀释取样系统
以上为机器翻译结果，长、整句建议使用 人工翻译 。