... American arbor-vitae (Thujaoccidentalis L.) 香柏，美国侧柏，金钟柏 ammonium base 铵基 anchot bolt 地脚螺丝 ...
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The chemical base for the bisulfite can be ionic calcium, magnesium, sodium or ammonium, Sulfite pulping can be carried out over a wide range of PH.
亚硫酸氢盐里的钙离子，镁离子，钠离子，铵根离子等化学基可以电离。
The process of the crystalline mother solution, ammonium paratungstate (APT) , through the macroporous strong-base resin D296, and the recovery of tungsten and ammonium chloride in it are studied.
本文研究了用大孔强碱性阴离子交换脂树D296处理仲钨酸铵（APT）结晶母液，回收其中钨及氯化铵。
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