[化] 液压安全装置

Do you need eight glasses of water everyday? Tring to do the right thing by drinking eight full glasses of water everyday may do little more than making a person run to the bathroom, a researcher said. Newspaper articles, health and beauty magazines

发表于:2018-12-05 / 阅读(97) / 评论(0) 分类 有声杂志阅读

Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

发表于:2018-12-07 / 阅读(81) / 评论(0) 分类 火星生命

Broadcast: Jan 15, 2003 By Jerilyn Watson This is the VOA Special English Health Report. Many millions of people around the world suffer from problems of the small intestine. Bleeding from abnormal gr

发表于:2018-12-07 / 阅读(121) / 评论(0) 分类 VOA2003(上)-健康资讯

A study of a solar-powered blood pressure monitor finds it can be an effective tool in places where electricity and even batteries can be in short supply. A study in Africa found the monitors to be affordable and accurate. 对太阳能血压计的研究

发表于:2018-12-19 / 阅读(61) / 评论(0) 分类 VOA双语新闻 2010年11月

This is Scientific Americans -60 seconds science .I'm Steve Murskey.Got the minute? People with high blood pressure are often told to watch the salt, and it's long been far that hypertension related to excess salt is caused by the salt increasing in

发表于:2018-12-24 / 阅读(77) / 评论(0) 分类 Scientific American(一)月

A no-smoking warning A: Excuse me, sir? Im afraid this is a no-smoking area. B: Whats that? A: Im sorry, sir. Smoking is not permitted in this area. B: Oh, sorry. Ill put it out. 请勿吸烟 A:对不起,先生?这里是无烟区。 B:什么?

发表于:2018-12-25 / 阅读(93) / 评论(0) 分类 办公室英语口语

交流表达-082.Warning

发表于:2018-12-26 / 阅读(109) / 评论(0) 分类 交流方式的多种表达

EXPLORATIONS -April 3, 2002: Spacesuit History By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell a

发表于:2019-01-04 / 阅读(103) / 评论(0) 分类 Explorations

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In theory, scientists could learn a lot about our health by testing tiny amounts of bodily fluidsa drop of blood, a tear, a bead of sweat. But somethin

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 Scientific American(十一)月

金属切削 metal cutting 机床 machine tool 金属工艺学 technology of metals 刀具 cutter 电路 circuit 半导体元件 semiconductor element 反馈 feedback 发生器 generator 直流电源

发表于:2019-01-08 / 阅读(107) / 评论(0) 分类 英文语法词汇

The study of a solar-powered blood pressure monitor finds it can be an effective tool in places where electricity and even batteries can be in short supply. A study in Africa found the monitors to be affordable and accurate. High blood pressure is a

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2010年(十一)月

Voice 1 Thank you for joining us for todays Spotlight. Im Liz Waid. Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand no matter where in the world they live. Voice 1 Mike is a te

发表于:2019-01-19 / 阅读(76) / 评论(0) 分类 环球英语 Spotlight

SCIENCE REPORT-January 10, 2002: New Glaucoma Treatments By Nancy Steinbach This is the VOA Special English Science Report. Sixty-seven-million people around the world cannot see because they suffer f

发表于:2019-01-23 / 阅读(133) / 评论(0) 分类 科技之光

And next to a threat we have never before seen -- a common medical device found in so many hospital rooms could be vulnerable to a cyber-attack, the FDA warning hospitals be on alert for hackers. Here's ABC's Aditi Roy. Hospitals across the country r

发表于:2019-01-29 / 阅读(63) / 评论(0) 分类 访谈录2015年

flow vi.流,流动 flower n.花,花卉;开花 flu n.流行性感冒 fluctuate vi.波动 vt.使波动 fluent a.流利的,流畅的 fluid n.流体,液体 flush n.兴奋,脸红;发烧 flute

发表于:2019-02-01 / 阅读(331) / 评论(0) 分类 考研英语

The device is a tiny sensor, implanted through a catheter in the heart's pulmonary artery. The procedure takes just seven minutes. The patient passes a wand over his chest, collecting data on heart pressure. That data is sent electronically to the do

发表于:2019-02-02 / 阅读(91) / 评论(0) 分类 VOA标准英语2010年(六)月

后角 clearance angle 龙门刨削 planing 主轴 spindle 主轴箱 headstock 卡盘 chuck 加工中心 machining center 车刀 lathe tool 车床 lathe 钻削 镗削 bore 车削 turning 磨床 grinder 基准 benchmark 钳工 locksmith 锻 forge 压模

发表于:2019-02-18 / 阅读(123) / 评论(0) 分类 实用英语

A 104 year-old woman was being interviewed by a reporter: And what do you think is the best thing about being 104? the reporter asked. She simply replied, No peer(窥视)pressure.

发表于:2019-02-18 / 阅读(121) / 评论(0) 分类 趣味英语

Can it really be sixty-two years ago that I first saw you? 我们初次相遇,难道真的是六十二年前吗? It is truly a lifetime, I know. But as I gaze into your eyes now, it seems like only yesterday that I first saw you, in that small ca

发表于:2019-02-19 / 阅读(85) / 评论(0) 分类 英语美文

My friend Sarah is a vet. I have asked her to tell us about a typical days work. I am a veterinary surgeon and work for a charity called PDSA, which stands for the Peoples Dispensary for Sick Animals. We treat pets belonging to people who are on stat

发表于:2019-03-01 / 阅读(135) / 评论(0) 分类 听播客学英语
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