单词	free semi-group
释义	free semi-group 自由半群
随便看	positive electrostatic charge positive electrotropism positive element positive elements positive elevation positive elongation positive emission positive emitter positive emotion positive emotional experience positive emotionality positive emotionalitype positive emotions positive empathy positive employment policy positive emulsion positive end expiratory pressure positive end-expiratory pressure positive end expiratory pressure breathing positive end-expiratory pressurepeep positive end-expiratory pressurePEEP positive end expiratory pressure, PEEP Positive End-Expiratory Pressures Positive end-expiratory pressure ventilation positive endomorphism