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An experimental laser radar system with double end differential absorption is studied and designed.
研究和设计了一实验性双端差分吸收激光雷达系统。
youdao
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Seal using novel double-end mechanical seal structure.
轴封采用新颖的双端面机械密封结构形式。
youdao
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Seal using novel double-end mechanical seal structure.
轴封采用新颖的双端面机械密封结构形式。
youdao