传统的废气分析仪的取样设备体积庞大，难以实现车载和在线检测。
Sample equipment of the traditional analysis instrument is too large to be inconvient to test on-board.
指出采用废气分析仪进行发动机起动故障诊断具有相当重要的实用价值，并通过试验得到了验证。
It is pointed out that diagnosing engine start failures with the exhaust gas analyzer has very important practical value and it is validated by tests.
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