第三步(酸洗)：去除金属表面的自由离子、金属残渣、氧化物和其他腐蚀产物。
The Third Step (Acid Wash) is to remove free iron, metallic residues, oxides, and other corrosion products from the surface of the metal.
牛顿和他的同事们相信促使金属在烧瓶中生长是有可能的，毕竟，众所周知，许多化学反应最后会剩下的树枝状的残渣。
Newton and his peers believed it was possible to prompt metals to grow, or “vegetate,” in a flask. After all, many chemical reactions were known to leave lovely dendritic residues in their wake.
这一复杂的化合物组成的一个协调化合物含有脂肪酸残渣，最多一个RCOO每两个金属原子组。
This complex compound consists of a co-ordination compound containing a fatty acid residue and at most one RCOO group per two metal atoms.
牛顿和他的同事们相信促使金属在烧瓶中生长是有可能的，毕竟，众所周知，许多化学反应最后会剩下的树枝状的残渣。
Newton and his peers believed it was possible to prompt metals to grow, or "vegetate," in a flask. After all, many chemical reactions were known to leave lovely dendritic residues in their wake.
一种回收羟化冶金残渣中贵金属的方法，涉及一种从羰化合成残渣中分离贱金属，浸出分离金银及铂族金属，产出稀有贵金属精矿的方法。
The process of recovering noble metals from carbonyl metallurgical residue includes separating out base metal, leaching out Au, Ag and platinum metals and producing rare noble metal concentrate.
其特征在于 采用常压加酸预浸、再加压氧浸出，将羰化合成残渣中的贱金属浸出，过滤分 离得到固体贵金属精矿。
The process is acid adding pre-leaching at normal pressure, pressurized oxygen leaching to leach out base metals and filtering separation to obtain solid noble metal concentrate.
以上结论表明，污泥活热解残渣可以作为一种廉价、安全、经济的吸附剂应用于重金属废水的处理。
The above results indicate that the pyrolysis sludge residue can be employed as an effective, safe and economically feasible adsorbent in treatment of heavy mental wastewater.
灼烧残渣为黑色泡沫炭层，具有金属光泽。
灼烧残渣为黑色泡沫炭层，具有金属光泽。
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