The error in experimental determination of RTD derived from tracer pulse injection, digit time and response measurement, and flow model parameter estimation are discussed.

本文分析了用脉冲法注入示踪剂时示踪剂的分布、时间与应答信号的测量，以及模型参数的回归等方面的种种误差。

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Field application reveals the high anti-interference ability, high precision measurement, low error rate communications, and fast response of the sub-station.

现场应用表明，该子站具有抗扰能力强，测量精度高、通讯误码率低、响应速度快等特点。

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The invention has the advantages of low manufacturing cost, rapid water lever dynamic response at high temperature, and lower water level measurement error.

本发明制造成本低，高温时水位动态响应迅速，水位测 量误差小。

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But the strategy worked, because United States agencies were allowed to proceed by trial and error, continually adjusting their policies over time in response not to ideology but to hard measurement of the results against societal goals.

NEWYORKER: Testing, Testing