The influence of various foreign ions has also been studied.
研究了多种离子对测定的影响。
Effects of different foreign ions on sintering of Portland cement clinker are different.
杂质离子对硅酸盐水泥熟料烧成有不同影响。
The effects of oscillation equilibrium time (or flow—rate), pH of aqueous phase and the foreign ions on the extraction were examined.
考察了振荡平衡时间（或流速），水相的酸度和干扰元素的影响。
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