“main fans”的概念、定义、翻译、参考文献-科学参考

单词	main fans
释义	main fans [`mān `fanz] ^{MINING ENGINEERING} Fans that produce the general ventilating current of the mine, being of large capacity and permanently installed.
随便看	step fault step function step-function generator step gage Stephanian Stephanidae stephanite Stephan's Quintet step lake step-out time step-out well steppe steppe climate stepped cone pulley stepped footing stepped gear wheel stepped leader stepped screw stepped-wave static inverter stepper motor stepping stepping motor stepping reflex stepping relay stepping switch

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