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。
Volume record, original position test and experiment data inspection should be paid more attention, all of which should coincide mutually, confirm mutually.
要重视现场编录、原位测试和实验资料检查校核，使之相互吻合，相互印证。
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