AT EIGHT o’clock on Saturday morning, sirens sounded and tears of relief—and champagne—flowed at the San José gold and copper mine in northern Chile.

周六早上八点,智利北部圣何塞金矿和铜矿汽笛鸣响, 欣慰的泪水沿着每个人的面颊流下,到处充盈着香槟酒的味道.

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The first publication adopting photogravure single-color printing method. Letterpress printing, copper stamp, relief printing and manual feed were used.

单色套印，在中国首创唯一一家用影写凹版印刷，用过铅印、铜印、凸版印刷，手动续纸。

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The invention provided one method to produce copper alloy with fine heat resisting and its slab and its intensity wasn't mostly decreased under the heat treatment, such as strain relief anneal.

根据本发明，提供在进行了应变消除退火等热处理的情况下也几乎不会引起强度降低且耐热性优良的铜合金及铜合金板的制法。

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She works with copper, using the same relief sculpture techniques as her ancestors.

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Copper's availability is also a relief for Wales for another reason, team manager Alan Phillips revealing back-up squad scrum-half Martin Roberts had a groin problem last week.

BBC: Cooper released for Wales clash