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该系统包括PSD，激光垂直准直器，数据采集箱和应用软件四个部分。
The system consists of PSD, laser vertical collimator, data sampling box and application software.
youdao
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该系统包括PSD，激光垂直准直器，数据采集箱和应用软件四个部分。
The system consists of PSD, laser vertical collimator, data sampling box and application software.
youdao