Summarizes the experience of contributing a good scientific and technological periodical for enterprise through the editing practice of Jiangxi Copper Engineering.

通过《江西铜业工程》的编辑实践，总结了办好企业科技期刊的经验。

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The paper compares in detail the ground performance of large copper and steel material grounding grids in power current, which has some reference for the practical engineering.

本文详细比较了大型铜材和钢材接地网在工频电流下的接地性能，对工程应用有一定的参考价值。

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The combination of materials self-damps to give the revised drive unit a solid, low-resonance base to work from. A new high-purity copper cable completes the engineering content.

这种复合材质的运用给予耳机单元一个结实而低谐振的“底盘”。耳机线采用新的高纯度铜制造。

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Banks won't lend the money until much more drilling is done, serious engineering work is completed and a feasibility study is presented sometime in 2004 that shows how much copper and gold can be mined at a profit.

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