Procedure rules and fundamental principle of surface colouring of Cu and Cu alloy are investigated. Chemical reactive mechanism of surface colouring of Cu and Cu alloy is probed also.

研究铜及其合金的表面着色过程的规律和基本原理，对铜及其合金表面着色的化学反应机理也进行了相应的探讨。

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A mixed nitric-sulphuric acids is used to recover the valuable metals ni, Cu and co from low-grade Ni-Cu sulfide tailings, the leaching rate of ni, Cu, and co is 91.

以硝酸为氧化剂、硫酸为添加剂的混酸体系用于铜镍硫化矿尾矿中镍、铜、钴等有价金属的浸出，镍、铜、钴浸出率分别可达91。

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Cu in the tested soils exists mainly as organic-bound Cu, amorphous Fe oxides-bound Cu, crystalline Fe oxides -bound Cu and the residual Cu.

供试土壤铜主要以有机态铜、无定形铁态铜、晶形铁态铜和残留态铜四种形态存在。

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Yen Cu is back there, Yen raise your hand higher so everyone can see.

楚叶坐在后面,叶把你的手举高一点,让所有的人都能看到你

耶鲁公开课 - 生物医学工程探索课程节选

This sleek refrigerator features a 19.4 cu. ft. capacity French Door refrigerator compartment on top, and a 6.1 cu. ft. compartment on the lower right side, providing an extraordinary 25.5 cu. ft. of fresh food storage.

ENGADGET: Samsung debuts T9000 refrigerator with LCD and Evernote integration

Technologically According to Traqline 2012inspired by Samsung's highly successful FlexDuo Oven, the NE58F9710SR offers new kinds of flexible cooking options that enable families to use the full large 5.8 cu. ft. capacity oven cavity for larger dishes like holiday turkeys, or they can use the Smart Divider to divide the oven into 2.4 cu. ft. and 3.3 cu. ft. top and bottom compartments for smaller items like dinner and dessert.

ENGADGET: Samsung debuts T9000 refrigerator with LCD and Evernote integration

More than 300, 000 cu m of debris had been removed by midday on Saturday.

BBC: Tibet mine landslide: Hopes fade for survivors