The high-copper amalgam showed medium cytotoxicity.

高铜银汞合金表现为中度细胞毒性。

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Another suggestion is that the color might be related to ice with high levels of metallic compounds, including copper and iron.

另一种说法是，这种颜色可能与冰中含有的大量金属化合物有关，包括铜和铁。

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The 93-meter-high copper beauty was a gift from the people of France in 1886, in recognition of the friendship established during the American Revolution.

这座高93米的美丽铜像是1886年法国人民赠送的礼物，为的是弘扬在美国独立战争中建立的友谊。

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Chart Analysis : The weekly chart of the high-grade copper futures shows an uptrend from the October lows, line b.

FORBES: 2 Ways to Play Copper's Seasonal Strength

That's when all eyes will turn to the 6-foot-high copper chimney erected atop the Sistine Chapel to pipe out puffs of smoke to tell the world if there's a new pope.

NPR: Conclave To Elect Next Pope Opens Amid Uncertainty

As a 23-year-old engineer at Bell Laboratories in 1979, I came to believe that high-speed, high-volume transmissions were feasible via copper telephone lines.

FORBES: Written by John Cioffi