分层开采

英语课程计划-the Preservation of the Ozone Layer

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(104) / 评论(0)

英语课程学习计划和讲义

China's coal mining still high-risk industry

BEIJING, Aug. 24 (Xinhua) -- A spokesman for China's work safety regulator said on Friday that coal mining remains a high-risk industry in the country despite improvements over the past decade. Speaking at a press conference in Beijing, Huang Yi, of

发表于:2019-01-07 / 阅读(55) / 评论(0)

英语新闻

VOA标准英语--Ocean Floor is Prime Target of Mining Industry

Ocean Floor is Prime Target of Mining Industry The next great frontier for the mining industry could be hydrothermal vents that lie deep on the ocean floor. The super-hot flues create deposits of sulfide, which contain precious metals such as gold, s

发表于:2019-01-13 / 阅读(64) / 评论(0)

VOA标准英语2012年(六月)

环球英语 — 126：Mining Disasters

Voice 1 Hello, Im Joshua Leo. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 The place is dirty

发表于:2019-02-14 / 阅读(38) / 评论(0)

环球英语 Spotlight

新西兰英语 547 Mining Lignite

Lignite is low grade coal which contains more moisture than high grade coal and is dirty to burn. Southland has ten areas with lignite. Solid Energy, which is a government company, plans to mine this lignite. The company has plans to build a $25m bri

发表于:2019-02-17 / 阅读(50) / 评论(0)

新西兰英语

VOA常速英语2008年-Mining Resumes in Goa Despite Opposition From E

By Steve Herman Goa, India 07 February 2008 Mining, along with tourism, forms the economic backbone of India's seaside state of Goa. Environmental concerns recently halted much of the iron ore extraction, but the way has been now cleared for resumpti

发表于:2019-02-19 / 阅读(97) / 评论(0)

VOA常速英语2008年（二月）

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学英语单词

Aylesford laboratory beater

bag someone

been crying since the day

benefit spillover

bicyclopentadiene dioxide polyol ether resin

bistable relay

block resistance