本发明可精确实现等速取样的目的。

The invention can achieve the purpose of sampling accurately in constant speed.

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这涉及所谓等速取样的问题。

It involves a subject known as isokinetic sampling.

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取样时通过控制采样流量，使样气流速模拟取样点管道中煤气流速达到等速取样的条件。

When sampling, the speed of sample gas is similar to the actural pipe gas by controlling the sample gas flow.

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