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单词 pH
释义

pH /ˈpi:ˈeɪtʃ//'pi 'etʃ/

英汉-汉英词典
abbr. 酸碱度符号(描述氢离子活度的)

ph

  1. abbr. Philippines 菲律宾
  2. Probability of Hit 命中率

PH

abbr. Patient History 病历
词组 | 习惯用语
ph value PH值,酸碱度
ph meter 酸度计;氢离子计
ph indicator 酸碱指示剂
英语例句库
  1. The activity of plant and microbic phytases depending on the medium pH was studied.
    研究了培养基依赖性植物和微生物肌醇六磷酸酶的活性。
  2. Large, dual-LCD lets you view pH (or mV) and temperature values simultaneously, and provides measurement and troubleshooting data with its decipherable icons.
    自动温度补偿即使有温度变动时也可保持读数的精确性。
  3. To remove bound CoA from the protein, the protein solution was buffer exchanged into 10 mM citrate (pH 5.0)–1 mM TCEP by using an S1Y10 spiral cartridge (Millipore).
    删除约束,农委会从蛋白质,蛋白质的解决办法是缓冲交换到10毫米,柠檬酸( pH值5.0 ) -1毫米tcep使用s1y10螺旋墨盒( millipore ) 。

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原声例句
Crash Course 综合篇

That concentration would push the pH down to 4.

不过这里有一些不同。

Osmosis-解剖与生理

They also regulate blood pH, volume, pressure, osmolality as well as produce hormones.

它们也调控血液pH值、血容量、血压、渗透压,并产生多种激素。

连线杂志

These rapid tests are very pH sensitive.

这些快速测试对 pH 值非常敏感。

VOA慢速英语_科技

A pH level below seven is considered acidic.

PH值低于7被认为是酸性。

环境与科学

The pH, the turbidity, the color, suspended solids, and COD.

pH 值、浑浊度、颜色、悬浮物和 COD(化学需氧量)。

Scishow 精选系列

It gives honey a pH value of less than 4.

它使得蜂蜜的 pH 值小于4。

VOA慢速英语_世界

The package label should include information about its pH level.

包装标签应包含有关其pH值的信息。

科学60秒 听力 2016年6月合集

The water there is extremely basic — with a pH of 11.6.

这里的水很普通,酸碱值为11.6。

科学60秒-科学美国人 2021年12月合集

But the pH of the Miller-Urey experiment is much higher.

但米勒实验的 PH 高得多。

科学60秒-科学美国人 2021年12月合集

In the original experiments they used a pH of 8.7 which is more alkaline, or basic.

在最初实验里,他们使用的PH 为8.7,其碱性更强。

中文百科

PH值

(重定向自PH)

pH值,亦称氢离子浓度指数酸碱值,是溶液中氢离子活度的一种标度,也就是通常意义上溶液酸碱程度的衡量标准。这个概念是1909年由丹麦生物化学家瑟伦·索伦森(Søren Peder Lauritz Sørensen)提出的。「pH」中的「H」代表氢离子(H),而「p」的来源则有几种说法。第一种称p代表德语「Potenz」,意思是力度、强度;第二种称pH代表拉丁文「pondus hydrogenii」,即「氢的量」;第三种认为p只是索伦森随意选定的符号,因为他也用了q。现今的化学界把p加在无量纲量前面表示该量的负对数。

英语百科

pH

Lemon juice tastes sour because it contains 5% to 6% citric acid and has a pH of 2.2. (high acidity)
Chart showing the variation of color of universal indicator paper with pH
pH values of some common substances

In chemistry, pH (/pˈ/) is a numeric scale used to specify the acidity or basicity (alkalinity) of an aqueous solution. It is roughly the negative of the logarithm to base 10 of the molar concentration, measured in units of moles per liter, of hydrogen ions. More precisely it is the negative of the logarithm to base 10 of the activity of the hydrogen ion. Solutions with a pH less than 7 are acidic and solutions with a pH greater than 7 are basic. Pure water is neutral, being neither an acid nor a base. Contrary to popular belief, the pH value can be less than 0 or greater than 14 for very strong acids and bases respectively.

近义、反义、联想词
近义词
n.
hydrogen ion concentration

联想词
alkaline碱性的,碱的;acidic酸的,酸性的;acidity酸度;solubility溶度,溶性,可解决性,可解释性,溶解性;conductivity传导性;salinity盐度;Zn元素锌的符号;redox氧化还原剂;temperature温度, 气温;electrolyte电解物;hydrolysis水解;
英英词典
ph n.
  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)

  2. synonymous: pH scale
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更新时间:2025/6/18 0:27:28