标签：detector 相关文章

用Mp3背六级单词006

sociology flexible duke composer basin entreat reap pendulum chop inspiration vocabulary rupture doctrine incomplete fracture flight flannel endow detector faction documentary relish ignite setback bed

发表于:2018-12-01 / 阅读(146) / 评论(0) 分类 用Mp3背六级单词

英语听力：探索发现 科学新发现：我们的大气层-22

Steven Jabs search for remaining fragments, using a custom-built metal detector rig. Meteorites will have iron in them, and it's ? So not only will magneticbe attract to it, but also metal detector will be able to pick it up. Every year, over eightee

发表于:2018-12-03 / 阅读(56) / 评论(0) 分类 探索与发现2014年

英语听力：探索发现 科学新发现：我们的大气层-23

But the friction and heat wears away at the space rock, the hot air actually melts the metal surface, and often the collision with the atmosphere can have a shattering effect, splitting the meteorites along fissures. This is an actual meteorite, and

发表于:2018-12-03 / 阅读(64) / 评论(0) 分类 探索与发现2014年

【听英文对话做选择】家庭防盗装置和安全系统

1. Based on the recording, where might the homeowner have been when the theft occurred? A. at school B. at the supermarket C. in the shower 2. What evidence do we have that a burglar entered the house? A. a broken window in the bedroom B. an unlocked

发表于:2018-12-28 / 阅读(118) / 评论(0) 分类 听英文对话做选择

2007年VOA标准英语-Work Intensifies to Clear Angola's Landmines

By Scott Bobb Huambo, Angola 24 July 2007 Princess Diana uses a remote switch to trigger the detonation of some explosive ordinance dug up by mine sweepers in Huambo, Angola, 15 Jan 1997 The world recently marked the 10th anniversary of the death of

发表于:2019-01-12 / 阅读(126) / 评论(0) 分类 2007年VOA标准英语（七月）

VOA常速英语2014--现代科技帮助预测变幻莫测天气

Modern Technology Helping Weather Predictions 现代科技帮助预测变幻莫测天气 WASHINGTON Severe storms that cause heavy damage throughout the world are a reminder of how important it is to be able to predict the weather. A meteorological e

发表于:2019-01-14 / 阅读(48) / 评论(0) 分类 VOA标准英语2014年(十月)

2017年CRI Robot helps to clear storing nuclear waste

An aquatic robot is being tested in Japan ahead of being deployed into the damaged core of the Fukushima Daiichi Nuclear Power Plant. The robot is able to locate and clear materials in places which are inaccessible to humans. Named Avexis - short for

发表于:2019-01-19 / 阅读(122) / 评论(0) 分类 2017CRI中国国际广播电台

美国科学60秒 SSS 2013-04-11

About six million people worldwide post to Twitter, producing some 650,000 new tweets daily. And one percent of these posts include geographic locations. The combination of language and location has allowed scientists to calculate the dominant langua

发表于:2019-01-20 / 阅读(49) / 评论(0) 分类 Scientific American(四)月

地道英语对话：Checking Smoke Detectors(3)

A: Hello, Betty speaking. B: Hey, Betty. This is Larry. Tell me how many smoke detectors you have, please. A: This apartment came with one, and I installed another one. B: Are there fresh batteries in each of them? A: Each detector beeps when the bat

发表于:2019-01-20 / 阅读(58) / 评论(0) 分类 地道英语对话-租房

地道英语对话：Checking Smoke Detectors(2)

A: Hello, this is Betty. B: Hello, Betty. This is Larry. How many smoke detectors are on your ceiling? A: I have two smoke detectors. B: Do you have fresh batteries in both of them? A: Both batteries are pretty fresh. B: Very good. I have to come by

发表于:2019-01-20 / 阅读(63) / 评论(0) 分类 地道英语对话-租房

地道英语对话：Checking Smoke Detectors(1)

A: Hello, this is Betty. B: Hi, Betty. Larry here. How many smoke detectors are in your apartment? A: Actually, I have two. B: Are the batteries fresh? A: Both batteries are good. B: Great. I need to come by and check them myself. A: No problem, when

发表于:2019-01-20 / 阅读(63) / 评论(0) 分类 地道英语对话-租房

地道英语对话：Checking Smoke Detectors(4)

A: Hi, this is Betty. B: Hi, Betty. It's Larry. I need to know how many smoke detectors are in your apartment. A: There was one when I moved in. Then I added one. B: Do both detectors have fresh batteries? A: I always keep them fresh. I don't want to

发表于:2019-01-20 / 阅读(75) / 评论(0) 分类 地道英语对话-租房

美语听力 English Cafe 89

Topics: Airport X-ray machines, Guinness Book of World Records, to be under siege, to run like butter, girlfriends, to trade up Words: checkpoint to scan pat-down metal detector privacy strip search wand to go off reference books brewery to compile h

发表于:2019-01-22 / 阅读(45) / 评论(0) 分类 美语听力 English Cafe

VOA标准英语2010年-Body Scanners, Touted as Effective Too

Public opinion polls suggest most Americans favor full body scanners as a way to protect against terror attacks on commercial airliners. The benefits of scanners are being debated in a number of countries. Some groups have raised privacy issues. But

发表于:2019-02-07 / 阅读(55) / 评论(0) 分类 VOA标准英语2010年(一月)

VOA标准英语2010年-Our World - 6 March 2010

Time again for our Website of the Week, when we showcase interesting and innovative online destinations. The world of physics has changed a lot since I went to school. More powerful particle accelerators atom smashers, they used to call them have all

发表于:2019-02-08 / 阅读(73) / 评论(0) 分类 VOA标准英语2010年(三月)

英语听力精选进阶版 6134

Are You Ready? 你准备好了吗？ You might have never heard of the CERN laboratory, but this is all about to change. On 10th September 2008 the most powerful scientific experiment ever attempted will take place at this quiet research centre near

发表于:2019-02-13 / 阅读(52) / 评论(0) 分类 英语听力精选进阶版

澳洲新闻 (ABC新闻快递) 2016-01-29

Thanks Michael The World Health Organization has warned the Zika virus is spreading explosively across Latin America and up to 4 million cases can now be expected. The mosquito borne virus has been linked to birth defects. 23 countries have reported

发表于:2019-02-14 / 阅读(46) / 评论(0) 分类 澳洲ABC新闻快递2016年

公众人物毕业演讲第329期:推特CEO迪克2013密歇根大学(7)

The streets were all completely blocked off by the San Francisco Police and the U.S. Secret Service was there and Russian Security Forces were there 整条街都被旧金山警方封锁起来 满处都是美国特勤局和俄罗斯安全部队的人

发表于:2019-02-16 / 阅读(67) / 评论(0) 分类 公众人物毕业演讲

2016年CRI China's Dark Matter Satellite Working Well

Since launching in December, China's Dark Matter Particle Explorer (DAMPE) Satellite Wukong has detected 460 million high energy particles, and sent about 2.4 Terra Bytes of raw data back to Earth. Chinese Academy of Sciences senior satellite enginee

发表于:2019-03-04 / 阅读(98) / 评论(0) 分类 2016CRI中国国际广播电台

生活大爆炸第八季 第101期:鼻子太通

You know the best part of working in the clean room? No allergies. Check it out. Oh, that-that...that's a lot of oxygen. 你知道在无尘室里工作最棒的是什么吗？不会过敏。你看。鼻子太通 ...一下吸进的氧气有点多。 W

发表于:2019-03-16 / 阅读(309) / 评论(0) 分类 生活大爆炸第八季
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