石油含硫量分析器

VOA慢速英语 2007 1123a

This is the VOA Special English Economics Report. With oil around one hundred dollars a barrel, this may be a good time for a short history of petroleum. Petroleum has been important since ancient times. The Greek historian Herodotus told of its use

发表于:2018-12-15 / 阅读(152) / 评论(0)

VOA慢速英语2007年（十一）月

TED演讲：气味背后的科学(7)

However, I managed to get a hold of a Borane eventually, and here is the beast. 无论如何，我最终得到了一些硼烷，这就是那个怪物。 And it really does have the same -- if you calculate, if you measure the vibrational frequencies,

发表于:2018-12-19 / 阅读(156) / 评论(0)

TED演讲教育篇

美国英语听力80篇2 Lesson39

[00:05.75]The American space agency has released to the public the first of many new pictures of Jupiter's Moon,Io. [00:15.41]NASA's Galileo spacecraft took the pictures last July and October using both black and white film and color film. [00:25.73]

发表于:2018-12-26 / 阅读(128) / 评论(0)

美国英语听力80篇

Step by Step 3000 第1册 Unit12:Dictation item(8)

Item eight. Vocabulary. fossil, molecule, hydrogen, carbon, sulfur. Petroleum has been important since ancient times. In Latin, the name means rock oil. Petroleum is a fossil fuel. The liquid comes from the remains of plants and animals that died mil

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step by step 3000 第一册

Listen this way听力教程第二册-17

发表于:2018-12-27 / 阅读(251) / 评论(0)

Listen this way听力教程

医学设备英文词汇

Urine Analyzer 尿液分析仪 blood sugar（glucose ） analyzer血糖分析仪 test strip 测试条 reagent 试剂 Semi-automatic Biochemical Analyzer半自动生化分析仪 Automatic Blood Cell Analyzer全自动血细胞分析仪 Urine sediments

发表于:2019-01-08 / 阅读(172) / 评论(0)

医学英语

TED演讲:我们为什么要排气(2)

But methane is actually odorless, too. 但是甲烷也是无味的。 Well then, what stinks? 那么，什么东西这么臭？ The foul smell is usually due to volatile sulfur compounds, such as hydrogen sulfide and methanethiol, or methyl mercaptan

发表于:2019-01-17 / 阅读(162) / 评论(0)

TED演讲教育篇

Job 约伯记18

18Then Bildad the Shuhite replied: 2When will you end these speeches? Be sensible, and then we can talk. 3Why are we regarded as cattle and considered stupid in your sight? 4You who tear yourself to pieces in your anger, is the earth to be abandoned

发表于:2019-01-26 / 阅读(234) / 评论(0)

约伯记

加强肝功能的六种食物

A healthy liver plays a key role in relieving digestive issues, such as a sluggish metabolism, gas, bloating, and constipation. It regulates blood sugar levels, which, when out of balance, can cause sugar cravings, fatigue, and fuzzy thinking. 健康的

发表于:2019-02-01 / 阅读(250) / 评论(0)

阅读空间

2006年VOA标准英语-US - Venezuela Energy Ties Endure Despite Deter

By Michael Bowman Washington 09 October 2006 Venezuelan president Hugo Chavez before the United Nations General Assembly, Wednesday Sept. 20, 2006 The war of words between Venezuela and the United States reached new heights last month, when Venezuel

发表于:2019-02-02 / 阅读(143) / 评论(0)

2006年VOA标准英语（十月）

报告显示我国161座城市空气质量得到改善

Effective pollution controls adopted in 161 major Chinese cities have greatly improved air quality, a green organization said last Monday. 一家绿色环保组织上周一表示，中国161座主要城市采取的有效的污染防治措施使空气质

发表于:2019-02-04 / 阅读(145) / 评论(0)

英语新闻

又出事了! 这些常见止咳药竟含硫磺?

Five widely used Chinese traditional medicines (TCMs) for treating cough have been found to have a high sulfur content, the Economic Information Daily reported on last Friday. 据《经济参考报》上周五报道，5种常见的中医止咳药被检

发表于:2019-02-04 / 阅读(116) / 评论(0)

英语新闻

环境保护成为两会关注热点

Political Advisors Hand Proposals on Environment Protection Environmental protection is going to be one of the focus-areas for both the political advisory body and the lawmakers on the National People's Congress. Wan Jie, a member of the national com

发表于:2019-02-06 / 阅读(161) / 评论(0)

英语新闻

对眼睛有益的10种食物

You need to take proper care of your eyes to maintain good eyesight. There are few fundamental rules that have to be done for good eye care. As you know very well that exposure to sun is very bad for the eyes. Similarly, if you use computer for long

发表于:2019-02-09 / 阅读(219) / 评论(0)

英语小短文

研究人员开发新技术应对雾霾

Researchers from Xian Jiaotong University in Northwest Chinas Shaanxi Province have developed a way to eliminate air pollutants during the coal-burning process, which they hope would significantly address the countrys smog problems. 来自中国西北的

发表于:2019-02-13 / 阅读(217) / 评论(0)

英语新闻

Environment Report Reveals Serious Pollution in China

China's State of the Environment Report for 2012 suggests that the overall quality of China's environment is balanced and stable. The condition of underground water remains to be a big concern. Li Dong has the details. Released annually by China's Mi

发表于:2019-02-14 / 阅读(258) / 评论(0)

世界各地新闻集锦

WHO: Diesel Exhaust Causes Cancer

The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in

发表于:2019-02-17 / 阅读(154) / 评论(0)

英语新闻

报告指出北京雾霾毒性已经有所下降

The proportion of hazardous metal toxins in PM2.5 in Beijing has decreased for the past three years, which experts lauded as the initial achievement of the city's anti-smog measures. 过去三年，北京市PM2.5中对人体有害的金属毒素的比重

发表于:2019-02-18 / 阅读(177) / 评论(0)

英语新闻

托福阅读背景之深海生物的生存

Once it seemed that the ocean floor was a desert of darkness. As everyone knew， sunlight was what made life possible by fueling photosynthesis， and sunlight can penetrate only the first few hundred yards of the oceans great depths. Lower， a few

发表于:2019-02-21 / 阅读(136) / 评论(0)

托福英语

NPR美国国家公共电台 2013-03-30

From NPR news in Washington, I'm Lakshmi Singh. The Environment Protection Agency is proposing new rules to clean up gasoline in order to reduce air pollution. NPR's Richard Harris reports the changes would require the nation to meet California's cur

发表于:2019-03-15 / 阅读(201) / 评论(0)

2013年NPR美国国家公共电台3月

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automatic plateforming line

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be open and aboveboard

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bromopyridine