煤粉发动机

China became net importer of coal

According to the latest data from the General Administration of Customs (GAC), China's net import(净出口) of coal hit 103.43 million tons in 2009. Last year, China exported 22.40 million tons of coal, down 50.7 percent year on year, while its coal

发表于:2018-12-11 / 阅读(49) / 评论(0)

英语新闻

美国国家公共电台 NPR Titanic Documentary Suggests Engine Room Fire Led To Sinking

AUDIE CORNISH, HOST: The story of the Titanic that most people know is pretty straightforward - unsinkable ship sets sail. Ship hits iceberg. Ship sinks. A new documentary suggests an extra wrinkle in that 104-year-old story. The claim is that a coal

发表于:2019-01-16 / 阅读(28) / 评论(0)

2017年NPR美国国家公共电台1月

分类词汇：钢铁产业

plate and strip 板带 steel billet 钢坯 crude steel 钢 steel 材 iron alloy 铁合金 long product 长材 pipe product 管材 crude steel 粗钢 mining of ferrous metal ores 黑色金属采选业 international standard price 基准价 Tubarao 巴西

发表于:2019-01-17 / 阅读(53) / 评论(0)

英文语法词汇

美国国家公共电台 NPR An Epidemic Is Killing Thousands Of Coal Miners. Regulators Could Have Stopped It

AILSA CHANG, HOST: Despite mounting evidence and a stream of dire warnings, federal regulators and mining companies failed to protect coal miners from toxic dust. MARY LOUISE KELLY, HOST: NPR and the PBS series Frontline spent more than a year lookin

发表于:2019-01-19 / 阅读(57) / 评论(0)

2018年NPR美国国家公共电台12月

水泥英文单词

水泥英文单词矿渣水泥slag cement 硅酸盐水泥portland cement 主导产品leading product 年产量annual output 基准reference 体系system 完全燃烧complete combustion 不完全燃烧incomplete combustion 机械不完全燃烧mechanical incomplete combustion 化学不完全燃烧

发表于:2019-02-07 / 阅读(155) / 评论(0)

英文语法词汇

英国学生科学读本第51期:一块煤(2)

In the layers of clay and sandstone between the seams of coal we often find the remains of plants very well preserved indeed. In the coal itself it is very hard to tell one plant from another, for they have all been crushed together. 在煤层之间的

发表于:2019-02-13 / 阅读(45) / 评论(0)

英国学生科学读本

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学英语单词

arthrogenous sporulation

atrophique

atthiss

automatic ground controlled approach

bebother

black rock deserts

bladder prolapse