短语词组短语ph -meter 酸度计lamp pH -meter 灯式酸碱计numerical ph -meter 数字式酸度计digital l pH -meter 数字式酸碱计immersion pH -meter of industry 工业用浸入式酸碱计direct -reading PH meter 直读PH计fiber -optic ph meter 光纤ph计Pen -type pH Meter 样品名称 返回 ph-meter