un. 镀钴
[网络] 电镀钴；镀钴层

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(247) / 评论(0)

VOA2004（下）--世界经济

刚果小矿工填补大企业留下的洞穴

AS IT IS 2016-07-29 Congo's Small Miners Fill Hole Left by Big Businesses 刚果小矿工填补大企业留下的洞穴 As large mining companies in the Democratic Republic of Congo are eliminating jobs, government officials are expanding the role of

发表于:2018-12-16 / 阅读(211) / 评论(0)

2016年VOA慢速英语(八)月

澳大利亚科学家推出一种望远镜来观察地下深处

Australian Scientists Propose a Telescope to Look Deep Underground Scientists in Australia want to build what they describe as a downward looking telescope to look for mineral wealth under the Earths surface. The telescope is really a project aimed a

发表于:2019-01-03 / 阅读(231) / 评论(0)

2018年VOA慢速英语(十)月

VOA慢速英语2018 宝马加入改善刚果采矿条件的项目

BMW Joins Project to Improve Mining Conditions in Congo German carmaker BMW is exploring ways to improve working conditions at cobalt mines in Congo. 德国车企宝马正在寻找方法以提升刚果钴矿的工作环境。 Cobalt is a hard, shiny

发表于:2019-01-06 / 阅读(206) / 评论(0)

2018年VOA慢速英语(十二)月

美国有线新闻 CNN 刚果钴矿开采业使用童工引关注

This show is centered on an in-depth report that concerns child labor, a large African country and the element of cobalt. We're explaining how all those things are tied together. First, the issue of child labor. The United Nations defines this as wor

发表于:2019-01-19 / 阅读(179) / 评论(0)

CNN美国有线新闻2018年7月

英语六级听力考试预测模拟练习8

[00:00.00]Listening Comprehension (20 minutes) [00:-1.00]Section A [00:-2.00]Directions:In this section,you will hear 10 short conversations.At the end of each conversation,a question will be asked about what was said.Both the conversation and the qu

发表于:2019-01-25 / 阅读(267) / 评论(0)

英语六级听力练习集锦

收购非洲最大铜矿中国长远布局钴供应

As China Molybdenum announced it was buying one of Africas largest copper mines earlier this month one thing was soon clear: the acquisition was about far more than the red metal. 随着洛阳钼业(China Molybdenum)本月早些时候宣布正在收购

发表于:2019-02-08 / 阅读(233) / 评论(0)

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adaptive search

aired ware

allowable voltage limit of the equip- ment