“mustard-seed coal”的概念、定义、翻译、参考文献-科学参考

单词	mustard-seed coal
释义	mustard-seed coal [`mǝs·tǝrd´sēd ´kōl] ^GEOLOGY Anthracite that will pass through circular holes in a screen which measure 3/64 inch (1.2 millimeter) in diameter.
随便看	fedsim star feed feedback feedback admittance feedback amplifier feedback branch feedback circuit feedback compensation feedback control loop feedback control signal feedback control system feedback factor feedback inhibition feedback loop feedback oscillator feedback regulator feedback transfer function feedback winding feed chute feed-control valve feeder feeder beach feeder-breaker feeder cable feeder canal

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