ph indicatorph: 【化学】表示氢离子浓度的倒数的对数的符号。 指示剂: indicator; tracer agent酸: acid碱: alkali soda酸碱指示剂: acid base indicator; acie-base indicator; hydrogen-ion indicator; ph indicator; ph-indicator下载手机词典可随时随地查词查翻译