词汇	H.S.S
释义	H.S.S. 高速钢
随便看	soundless cracking agent soundlessly soundlevel sound level test sound lever meter sound library soundlessness soundlessnesses soundless words sound level sound-level sound level calibration instrument sound level calibrator sound level control sound-level control sound level difference sound level gauge sound level indicator sound level measurement instrument sound level mete sound level meter sound-level meter sound level meter attenuator sound level meter data sound level metre