求翻译：给料机出厂前已进行时间不少于四小时的空载试车,设备在现场安装调整完毕后应进行短期试运转，以配伍生产流量；调节料仓闸门的开度,改变料层厚度,达到调节给料机生产率的目的。是什么意思？

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Before the feeding engine exwork has carried on the time many in four hour idling tests run, the equipment finished after the scene installment adjustment should carry on the short-term test run, blends the production current capacity; The adjustment bunker strobe opening, change material level thic

Feeder had no less than four hours before delivery of the no-load test, equipment installation and adjustment at the scene after the test run on a short-term basis, so as to compatibility of production flow; regulation of hopper gate opening, changing thickness of materials, to adjust the feeder pro

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