The geophysicists went on to conduct a second test in an abandoned copper mine in Arizona, using 25 iron plates spaced at various intervals in tunnels up to 45 metres below ground.

地球物理学家又在亚利桑那州一个废弃的铜矿矿井进行了第二次试验，他们将25块铁板有间隔的放置在地下45米出的坑道中。

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The process flow extracting Copper and Nickel sulfate from electroplating sludge is put forward. The economic barometer of technology procedure is investigated by test.

提出了含铜含镍电镀污泥综合利用的工艺流程，并用试验考察了各工序的技术经济指标。

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Is plated copper tensile strength and elongation being tested? If so, what is the test frequency.

有无对镀铜板进行抗拉强度和延长进行测试？如果是这样，你的测试频率是怎样？

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In Peru the Hallgarten analysts are fans of Northern Peru Copper, whose test bores show a sizable reserve of 7.3 billion pounds of copper and a mine life of 20 years.

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That's when I saw the glossy pregnancy test box sticking out of the old copper wastebasket.

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Right now, copper is on the move higher after what looks like a successful test of the 2011 lows this summer.

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