研究和设计了一实验性双端差分吸收激光雷达系统。
An experimental laser radar system with double end differential absorption is studied and designed.
这条管道半径两端间存在一速度差。
There is a velocity difference across the radius of the pipe.
反过来，当对热电器件两端施加电压则会产生温度差。
Conversely, when a voltage is applied to it, it creates a temperature difference.
对定产量生产，跟端压差随时间逐渐增大；
Under the constant production rate condition, the pressure difference at the heel increases with time.
对定产量生产，跟端压差随时间逐渐增大；
Under the constant production rate condition, the pressure difference at the heel increases with time.
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