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ph是什么意思

ph

美[ˌpiː'eɪtʃ]  英[ˌpiː'eɪtʃ]
n.  [化]酸碱度(=Potential Of Hydrogen)
abbr.  紫心勋章(=Purple Heart)
  近义词:pHscale,

详细释义

n.(名词)
  1. 【化】PH值(表示氢离子浓度的倒数的对数的符号),酸碱度
  2. 氢离子指数
abbr.(缩略词)
  1. =Purple Heart 紫心勋章(授予作战中受伤的军人)
  2. =per hour 每小时
  3. =Public Health 公共卫生
  4. Philippines 菲律宾
  5. Probability of Hit 命中率

英英释义

Noun
  1. (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic);

例句

用作名词(n.)
  1. Despite this diversity and the fact that certain organisms can grow at extremes of the pH scale, generalities can be made.纵然有差异而事实上有些生物是可以在极端的酸碱度范围上生长,仍可以得到一些归纳结果。
  2. High temperatures or extremes of pH make MAbs unravel.They typically expire in weeks unless stored near freezing temperatures.高温和极端的酸碱度都会使抗体瓦解,如果没有冰冻保存,通常数星期就会坏掉。
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