This paper studies the effects of PH value,carbon chain length and structure of xanthate on the flotation behaviors of cerusite.
考察了白铅矿硫化的pH范围,黄药碳链长度及其结构对黄药捕收白铅矿浮选行为的影响。
PH value
英语例句库
The effect of PH value of the system and the amount of GA on the time of glomeration and swelling ratio of PVA beads were studied.
同时还讨论了体系PH值、GA用量等因素对PVA成球时间及球珠溶胀性能的影响。
原声例句
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。
科拉诺斯动画科普
But the overabundance of CO2 in the atmosphere has gradually decreased the pH value of the Earth's oceans, foreshadowing a catastrophic loss of marine life and vital ocean ecosystems.
但是由于大气中二氧化碳过剩，导致海洋的pH值逐渐降低，预示着海洋生物和重要的海洋生态系统的惨重损失。
英语百科
pH
In chemistry, pH (/piːˈeɪtʃ/) 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.
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