单词	群警报
释义	群警报group alarm
随便看	double acting (pneumatic) cylinder double acting [pneumatic] cylinder double acting press double-acting press double acting pump double-acting pump double-acting refrigerant compressor double acting sprayer double-acting steam hammer double acting steam pile driver double-acting turbine double-acting valve double action double-action double-action column press double action crankless press double action dobby double action hammer double action hydraulic press double action model of internal news flow double action pedal double action press double-action press double action pressing double-action pressing