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pH meter
desert. pH 酸碱度计
ecol. pH 计
lab.eq. pH计; 酸度计; 氢离子计
oil 酸碱度计
tech. 氢离子浓度计; 酸碱计; pH值测定仪
pH-meter
life.sc. pH计; 氢离子计
water.res., ecol. pH 计
PH-meter
auto. 氢离子浓度测定仪; 酸碱计
PH- meter: 16 phrases in 7 subjects
Agriculture2
Animal husbandry2
Chemistry1
Metallurgy2
Nautical1
Technology7
Water resources1