单词：mass spectrum analysis
单词：mass spectrum analysis 相关文章
Back at the explosives lab, examiners use a high-tech instrument called a Raman spectrometer, a device that determines if a package contains explosive material. With the Raman, what we are doing is th
揭秘联邦调查局
Study Says Breath Analysis Can Help in Diagnosing Cancer Lung cancer claims an estimated one and a half million lives each year. But a research team at the Cleveland Clinic and University of Illinois is working to develop a new test that could make d
VOA标准英语2012年(一月)
Stand Clear Of The Doors: TV Finally Gets On Board With Mass Transit play pause stop mute unmute max volume 00:0003:47repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your F
2016年NPR美国国家公共电台12月
Dealing with a Mass Transit Strike Marge: Where have you been? You should have been home over two hours ago! Homer: Ive been trying to get home. Havent you been watching the news? The transportation workers union has voted to strike. There was a mass
2014年ESL之旅行交通购物
This is the second in a 2-part Business English Pod series on presenting a SWOT analysis. A SWOT analysis is a tool that helps companies understand their strengths and weaknesses, while keeping in mind the opportunities and threats they face. In this
商务英语演讲课
In this Business English Pod lesson, we start the first in a 2-part series on presenting a SWOT analysis. A SWOT analysis is a simple but powerful framework for analyzing your companys strengths and weaknesses these are internal to the company as wel
商务英语演讲课
A gunman in Texas shot and killed 26 people in a church in the small community of Southerland Springs, Texas on Sunday. At least 20 people were injured in the shooting. Victims included children and the elderly. The suspected gunman is also dead. The
2017年VOA慢速英语(十一)月
Mass School Shootings Mostly in Small US Towns In the United States, mass school shootings are most likely to happen in small towns and suburban areas. One example is the shooting last week at a high school in Santa Fe, Texas. Ten people died in the
2018年VOA慢速英语(五)月
Some call it the hormone of love. Its oxytocin and it helps moms bond with and breast-feed their babies, and even keeps romantic couples content. Now a study suggests that this same hormone might also help people with autismby improving their social
Scientific American(二)月
By Nick Wadhams Nairobi 11 January 2008 Kenya's political opposition says mediation efforts with the government over Kenya's flawed December elections have collapsed and the opposition is now calling for mass rallies across the country next week. Nic
VOA标准英语2008年（一月）
News and analysis from an African American perspective Art Chimes | Washington, DC 19 February 2010 Related Links The Root February is African American History Month here in the United States, and so this week we feature a site that looks at news and
VOA标准英语2010年(二月)
DAVID GREENE, HOST: We now know that the man who killed 26 people in a tiny Texas church on Sunday had been court-martialed and discharged from the Air Force for assaulting his wife and child. And authorities say that Devin Patrick Kelley sent threat
2017年NPR美国国家公共电台11月
MICHEL MARTIN, HOST: In Thousand Oaks, Calif., Wednesday, 12 people were killed in a Western-themed bar before the shooter is believed to have turned the gun on himself. It has become an all-too-common scene. According to Gun Violence Archive, an ind
2018年NPR美国国家公共电台11月
DNA analysis is a staple of crime scenesand crime shows, like HBO's The Night of or the old standby, CSI: We just need to get this to the DNA lab, confirm it's the victim's blood. And then, case closed. And it's not just for crime: DNA sequencing als
2016年Scientific American(九)月
By Sabina Castelfranco Valencia 09 July 2006 Pope Benedict XVI greets Spain's King Juan Carlos, left, and Queen Sofia, center, as he arrives to hold a Mass in Valencia, Spain, Sunday, July 9, 2006 Pope Benedict has ended a lightening visit to Spain
2006年VOA标准英语（七月）
By Gilbert da Costa Abuja 11 September 2006 Federal workers in Nigerian are bracing themselves for mass layoffs following a weekend announcement that some 15,000 workers are to be let go this month. Union officials are reacting angrily to the plan a
2006年VOA标准英语（九月）
By Barbara Schoetzau New York 20 April 2008 Pope Benedict XVI ended his six-day visit to the United States with a jubilant mass at the 57,000-seat Yankee Stadium. From VOA's New York Bureau, correspondent Barbara Schoetzau reports the leader of the w
VOA常速英语2008年（四月）
Experts: Gun Violence Is Public Health Crisis in US 专家称枪支暴力引发美国公众危机 WASHINGTON Gun violence in the United States has claimed the lives of more than 30,000 men, women and children in recent years, according to the Centers
VOA常速英语2013年(九月)
China opposes proliferation of weapons of mass destruction: FM spokesman BEIJING, Nov. 14 (Xinhua) -- China opposes the proliferation of weapons of mass destruction and their means of delivery, Foreign Ministry spokesman Hong Lei reiterated at a regu
英语新闻
A mass rally and parade has been held in DPRK's capital a day after the Worker's Party wrapped up its first congress in 36 years. Hundreds of thousands of people were seen marching through the main ceremonial square. Participants in Pyongyang practic
cctv9英语新闻2016年