heavy block的意思|示意
美 / ˈhevi blɔk /
英 / ˈhɛvi blɑk /
（有34个滑轮的）重型滑车
heavy block相关例句
The instrument's calibration method is studied. Electrostatic calibration and heavy block calibration are compared.
研究了仪器的标定方法,比较了静电标定和重块标定的优缺点.
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