Biosorption is an effective method for treating metal-containing wastewater, especially for the wastewater of low metal concentration.

生物吸附法是目前处理含金属废水的一种较有效的方法，特别是对于低浓度废水的处理更具有明显优势。

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Inrecent years, the synthesis of transition metal-containing polyoxotungstates has become animportant research area of the synthesis of polyoxometalates.

近年来，过渡金属多钨酸盐合成一直是多酸合成化学的热点研究领域。

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Acidithiobacillus thiooxidans are often used in the biological hydrometallurgy and metal-containing sludge treatment fields, but their natural bacterial strains have a limited acid-producing capacity.

嗜酸氧化硫硫杆菌常被应用于生物湿法冶金，金属污泥的处理等领域，但其天然菌株的产酸能力有限。

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But in souvenir photos of those days, more than a few metal flasks, no doubt containing something stronger than Bubble-Up, can be seen on the floor beneath the tables.

VOA: standard.2010.02.25

Another French firm, Kaviari, offers "en-K de Caviar, " colorful metal capsules containing a 15-gram portion and a tiny spoon.

WSJ: Black Gold: French Caviar Is �� la Mode

Instead of each denomination containing precious metal, only one higher-denomination coin would do so.

ECONOMIST: The lessons of sound money from 1,000 years' experience