Copper double-tape 铜箔基材双面导电胶
Sliver plated copper double braiding 镀银铜线编织
double cotton-covered copper wire 双纱铜包线
double silk-covered copper wire 双丝包铜线
copper hydroxide calcium double salt 氢氧化铜氯化钙重盐
double-sided copper-clad laminate 双面覆铜箔层压板
double copper-wire crosstalk suppression filter 双铜线串音抑制滤波器
DOUBLE-SIDED COPPER-CLAD 双面覆铜箔层压板
Annual copper in concentrate output would start at 30,000 metric tons and double a year later, he said.
他表示，每年的精矿产量开始时达到3万公吨，一年后产量能增加一倍。
Annual copper in concentrate output would start at 30, 000 metric tons and double a year later, he said.
他表示，每年的精矿产量开始时达到3万公吨，一年后产量能增加一倍。
Chinalco was to have paid $12.3bn for stakes in Rio's iron ore, copper and aluminium assets and $7.2bn for convertible notes that would double its equity stake in Rio to 18%.
中铝要支付123亿美元用于购买力拓铁矿石、铜和铝资产的股权，另外支付72亿美元用于购买可转债，这将使中铝持有力拓股权翻倍至18%。
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