It also involves the design method, principle of two-frequency laser gauge meter and the result of verifications of standard devices using the gauge.
并介绍了双频激光同轴量规计的设计方法、工作原理及利用它对标准件定标的情况。
Multiple gauge high and low frequency wire networks for accurate, natural sound reproduction.
多个指标高和低频率线网络的准确，自然的声音复制。
Multiple gauge high and low frequency wire networks for accurate, natural sound reproduction.
多个指标高和低频率线网络的准确，自然的声音复制。
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