单词：double-acting double piston rod oil cylinder
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Lesson 13 The search for oil 探寻石油 First listen and then answer the following question. 听录音，然后回答以下问题。 What do oilmen want to achieve as soon as they strike oil? The deepest holes of all made for oil, and they go down t
新概念英语第四册
Daniel: Hey, Vella. Well we're talking about things, big things you want to achieve in your life, so how about you? What do want to do? Vella: Well, one of my biggest dreams is to become an actress. Daniel: Uh-uh. Vella: Because I really love acting
原版英语对话1000个
Mike: Hey Ben, if this Amy girl that you are so hot for already said yes to the movie, then what's your problem? Yes! Alright, the pressure's on. You miss this, you've got C A R O. Ben: My problem is that mum and dad have never really officially s
成长的烦恼第四季
美国动力公司研发提升五成油效对置活塞二冲程发动机 This little engine looks like it has only three pistons, but in fact, it has six, sharing only three cylinders. 这台小身材引擎看起来只有3个活塞,但事实上却有
VOA标准英语2016年(三月)
Double Star Chapter One If a man walks in dressed like a hick and acting as if he owned the place, he's a spaceman. It is a logical necessity. His profession makes him feel like boss of all creation; when he sets foot dirtside he is slumming among th
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Daniel: Hey, Vella. Well we're talking about things, big things you want to achieve in your life, so how about you? What do want to do? Vella: Well, one of my biggest dreams is to become an actress. Daniel: Uh-uh. Vella: Because I really love acting
英语趣味课堂
What Do Octane Numbers Mean? At the gas pump, you have a choice of octane numbers. 87? 93? Whats the difference? To explain octane numbers, lets take an imaginative leap into the internal combustion engine of a car. Inside the cylinders are combustio
英语听力文摘 English Digest
Grammar Girl here. Today's topic is the the, not as in the British '80s band, but as in what to do when a sentence calls for a the in front of a name or title that starts with a the, like The New York Times. So, listener Rob Jones asked, Do I have to
英语语法 Grammar Girl
Ocean Floor Reveals Past Climate Changes Time capsule Lamont research professor Maureen Raymo, the director of the Core Repository, slides open a long, narrow drawer from the cabinet. Like thousands of others here, the drawer contains a long, thin cy
VOA标准英语2012年(一月)
This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile
VOA标准英语2016年(三月)
By Ben Gilbert Baghdad 03 January 2006 Iraq's oil production has dropped sharply because of insurgent attacks and bad weather, raising the prospect of energy shortages. Meanwhile, the country's oil mi
2006年VOA标准英语（一月）
Double, Double play pause stop mute unmute max volume 00:0005:28repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin. OPHIRA EISENBERG, HOST: Now it's time to
2016年NPR美国国家公共电台10月
Corporate taxation 企业税务 Death of the Double Irish 计划夭折 The Irish government plans to alter one of its more controversial tax policies 爱尔兰政府计划改变其一项颇具争议的税收政策 BONO may front one of the world's mo
经济学人财经系列
Mexico has announced the allocation of more than 170 new sites for oil and gas development in an area in the country's northeast region. This comes at a time when production at the country's main field is falling dramatically, leading some analysts
VOA标准英语2009年(三月)
US Could by 2017 Be World's Biggest Oil Producer The International Energy Agency says that by 2017 the United States is likely to overtake Saudi Arabia as the world's biggest oil producer. The Paris-based energy agency said Monday in its annual forec
英语新闻
RIO DE JANEIRO, April 4 (Xinhua) -- Fellipe Bastos scored two goals as Vasco de Gama defeated Alianza Lima 2-1 in their Copa Libertadores match at Lima's Alejandro Villanueva Stadium on Tuesday. The result lifts Vasco to the top of their group with 1
英语新闻
今天我们要学的词是double check。 Double check, 是复核的意思。The teacher told her students to double check their answers before handing in the exam, 老师告诉学生们，交卷之前应该反复检查自己的答案。They double
英语每日一词
今天要学的一个词组是：double standard。 Double standard是指双重标准。美国连锁商店沃尔马允许在中国的分店组织工会，却不允许在美国的商店组织工会。媒体报导的标题说：Critics claim double sta
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The plunge of oil prices has helped reduce fuel costs and made airlines big winners. Cathay Pacific Airways said on Wednesday that its annual profit nearly doubled in 2015. The net profit of Hong Kong's biggest airline jumped 90% from the year before
cctv9英语新闻2016年