The system uses C8051F monolithic as control chip, JN5121 module and gas sensor, can automatically record inspection locations, sampling time, gas concentration and so on.

系统采用C8051F单片机作为控制芯片、JN5121模块及瓦斯传感元件，自动记录巡检沿途地点编号、采样时间、瓦斯浓度等信息。

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We monitor and record the testing process of tractor, analyze and control the testing process through sampling inspection by attributes, and this can make the test process quality be in controlling.

对拖拉机试验过程进行监视记录，运用计数抽样检验法则对试验过程进行分析和控制，从而达到试验过程质量可控。

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After the return inspection (or sorting), quality control department will recheck according to the standard, and record the recheck results.

返检(或分选)完后，由品管部按标准进行重新检验，并记录重新检验的结果。

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