[物化] 硅酸盐矿物胶体化学

Mineral Smuggling Losses Said to Cost

By David Lewis A natural resources watchdog group issued a report Tuesday warning that smuggling and corruption are costing the Democratic Republic of Congo millions of dollars a month in lost revenue

发表于:2018-12-08 / 阅读(63) / 评论(0)

VOA2004（下）--世界经济

国家地理-2008-05-11 Fighting Fire with Fire 以火攻火保护森林

It's been protected from human impact since 1909. With three million acres, nearly a half million under water, Superior National Forest is largely unspoiled. But now the survival of this national treasure rest with those who would see some of it bur

发表于:2018-12-30 / 阅读(44) / 评论(0)

国家地理2008年

Korean Aid to Help Unearth Cameroon’s Mineral Resources

Cameroon's new mineral research center will begin operations this year. South Korean mining researchers are making trips to Cameroon to determine the overall cost of the facility, to be located in the capital, Yaounde. They say the center will cost s

发表于:2019-01-14 / 阅读(89) / 评论(0)

VOA标准英语2011年(二月)

经济学人133:塑料旧法新用

Science and Technology Plastics There and back again 科技塑料旧法新用 An old idea may help solve the problem of plastic waste 一个老方法也许可以帮助解决塑料垃圾的问题 PLASTICS were once regarded as wonder-materials. They

发表于:2019-01-26 / 阅读(52) / 评论(0)

经济学人科技系列

雅思阅读词汇：火山爆发(四)

manganese n. 锰（元素符号为Mn） mantle composition 覆盖物的成分 Mercury n. 水星 molten v. 溶化；adj. 熔铸的 monitor n. 监视器，监控 mudflow n.[地] 泥流 Neptune n. [天]海王

发表于:2019-02-02 / 阅读(113) / 评论(0)

英文语法词汇

Huge asteroid will pass closer to Earth than the moon

BEIJING, Nov. 7 (Xinhuanet) -- A huge asteroid will pass closer to Earth than the moon on Tuesday, but experts say there is no cause for alarm. Asteroid 2005 YU 55 will pass about 300-thousand kilometers from the earth. The giant space rock is about

发表于:2019-02-08 / 阅读(49) / 评论(0)

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antimony(v) oxychloride