英语词汇“spot activity”的读音、翻译、释义、用法及例句-开邑网

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词汇	spot activity
释义	spot activityspot activity1.■黑子活动
随便看	constant speed chopper blade constant speed control constant speed cut constant-speed drive constant speed drive constant speed engine constant speed governor constant speed model constant-speed motor constant speed motor constant-speed propeller constant speed propeller constant speed ratio coupling constant speed reducer constant-speed regulator constant speed rotor constant speed setting constant speed unit constant spring hanger constant state constant state region constant stiffness semi-elliptic spring constant stoke width font constant storage constant strain criterion