单词	phthalein indicator
释义	phthalein indicator 酞指示剂
随便看	Ultra-sonic shot peening ultrasonic shot peening treatment ultrasonic sign ultrasonic signal ultrasonic signal processing ultrasonic signals ultrasonic simulation ultrasonics in medicine ultrasonic slicing ultrasonic slicing machine ultrasonic slurry sampler ultrasonic soldering ultrasonic soldering iron ultrasonic soldering machine ultrasonic soldering unit Ultrasonic sol-gel Ultrasonic solvent extraction Ultrasonic-solvent-extraction ultrasonic sonar ultrasonic sound ultrasonic sound apparatus ultrasonic sound appratus ultrasonic sound beam ultrasonic sounding ultrasonic sound velocity