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n.退鉛，去鉛...
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delead的音標：delead的英式發(fā)音音標為：[d?'led]delead的美式發(fā)音音標為：[d?'led]...
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去鉛...
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deleading的音標：deleading的英式發(fā)音音標為：[d?'led??]deleading的美式發(fā)音音標為：[d?'led??]...
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The key to treatment of refractory ores is preoxidation and deleading absorption of carbon on gold.這些方法的關(guān)鍵是預氧化和(或)去除碳質(zhì)礦的“劫金性”....