pH

英 [ˌpiː ˈeɪtʃ]

美 [ˌpiː ˈeɪtʃ]

n.  pH值(溶液或物质的酸碱度。pH值介于0至14，7以下为酸，7以上为碱)

复数：phs　

医学

Collins.1 / BNC.4255

牛津词典

noun

• pH值（溶液或物质的酸碱度。pH值介于0至14，7以下为酸，7以上为碱）
  a measurement of the level of acid or alkali in a solution or substance. In the pH range of 0 to 14 a reading of below 7 shows an acid and of above 7 shows an alkali .
  1. a pH of 7.5
     pH值7.5
  2. to test the pH level of the soil
     测试土壤的酸碱度

柯林斯词典

• N-UNCOUNT 酸碱度，pH值（小于7为酸性，大于7为碱性）
  ThepH ofa solution indicates how acid or alkaline the solution is. A pH of less than 7 indicates that it is an acid, and a pH of more than 7 indicates that it is an alkali.
  1. ...the pH of sea water...
     海水的酸碱度
  2. Skin is naturally slightly acidic and has a pH of 5.5...
     皮肤具有天然弱酸性，pH值为5.5。
  3. The fluid that emerges from the vents is acidic (pH 3) and hot.
     从那些出口出来的液体呈酸性（pH值为3），且是热的。

双语例句

• Soil pH and other environmental influences affect blank shank.
  土壤ph值和其它环境变化也影响黑胫病。
• Have you check the pH and temperature of your tank?
  让您检查酸碱度和温度您的坦克？
• Effect of pH Value and Temperature on Feed Enzyme-complex Activity
  pH值和温度对饲用复合酶活力的影响
• Effects of temperature and pH on the digestive amylase and cellulose activities of siliqua minima
  pH和温度对小荚蛏淀粉酶和纤维素酶活性的影响
• Water molecules dissociate into ions as a function of pH and temperature and result in a very predictable conductivity.
  水分子在pH值和温度的作用下分离成离子，产生一个可预知的电导率。
• From this it appears that bisulfite concentration and PH have opposite effects on oxidation.
  由此看来，亚硫酸盐的浓度和ph值，对氧化的作用是相反的。
• Pure water is neutral with a pH of 7.
  纯水是中性的，酸碱度为7。
• Effects of Temperature, Time and pH on the Activity of Phytase in Feed
  温度·时间和pH对饲料中植酸酶活力的影响
• All patients should be studied by postoperative pH study.
  所有患者术后应研究pH值的研究。
• Methods The chromatometry and PH value were detected in varied ratio liquid of two drugs.
  方法使用比色法和pH值对照对两者不同配伍比例时溶液的澄明度进行检查。