单词：culling
v look for and gather
culling的用法和样例：
例句
- The mathematicians turned to culling periodic solutions.数学家们转而去挑选周期解。
- Culling stem cells destroys the days-old embryo harboring them, regardless of whether it was cloned or left over in a fertility clinic.一般来讲，无论是被克隆还是被转移到其他环境中，挑选干细胞线将会自动破坏曾经养育它的胚胎。
词汇搭配
- cull拣选
- artificial culling人工淘汰
- culling chute鉴定栏
- culling level淘汰标准
- independent culling独立选择
单词：culling 相关文章
California State Water Project says it will provide no water to the states residents and farmers this year. As NPRs Sam Sanders reports, it is the latest efforts to deal with the severe drought. At full capacity, the California State Water Project se
2014年NPR美国国家公共电台2月
SCOTT SIMON, HOST: When you talk to disease experts about what might alarm them, it's not Ebola or Zika. It's Nipah. It's as deadly as Ebola but attacks the brain, and it has the potential to spread by mere cough. As NPR's Michaeleen Doucleff reports
2017年NPR美国国家公共电台2月
1. Hundreds of Iraqi police and army troops fanned out across Baghdad， setting up checkpoints and fortifying polling stations ahead of a historic constitutional referendum. 2. Thousands of birds wer
美联社新闻一分钟2005
By Lisa Schlein Geneva 06 January 2006 People carry coffin of 15-year-old Fatma Kocyigit for burial in her hometown, Dogubayazit, Jan. 5. 2006 The World Health Organization, WHO, says a team of intern
2006年VOA标准英语（一月）
AS IT IS 2015-04-25 Sierra Leone Dog Population Rising Because of Ebola Crisis 埃博拉导致塞拉利昂狗数量增加 The Ebola crisis in Sierra Leone has led to growing concern about another disease: rabies from wild dogs. Many owners fear their
2015年VOA慢速英语(四)月
By Margaret Besheer Washington 18 February 2006 French officials have confirmed the first case of the deadly H5N1 strain of bird flu in their country. The virus was found in a wild duck in southeaster
2006年VOA标准英语（二月）
By Nancy-Amelia Collins Jakarta 20 February 2006 An Indonesian market seller stands near her wares at a traditional wet market in central Jakarta The Indonesian government says it will take firm actio
2006年VOA标准英语（二月）
Secret Life of Egyptian Pigs A city of 18 million people produces a lot of trash. Much of Cairo's ends up in a Coptic Christian enclave called Garbage City, where people recycle just about everything. Lately, they are getting help from a secret sourc
VOA标准英语2013年(五月)
STEVE INSKEEP, HOST: President Trump made an eyebrow-raising claim yesterday. As part of an effort to make America more business friendly, the president said he thinks his administration can eliminate 75 percent or more of government regulations. Thr
2017年NPR美国国家公共电台1月
A number of Sydney school students could face jail for allegedly importing drugs into the country. Custom says international crime sydicates are offering teenagers sums of money to accept packages from China. Two students, aged 15 and 16, are facing
澳洲ABC新闻快递2013年
Camels are not usually associated with Australia, but Australia is home to the largest herd of feral camels in the world. About 12,000 dromedary camels were brought to Australia in the mid 19th century to carry people and supplies during the explorat
自然百科2009年
By Sonja Pace London 07 August 2007 British police officers block a public footpath leading to a farm outside Normandy, England, where a nsecond outbreak of foot-and-mouth disease was was discovered Tuesday, 7 Aug. 2007 Foot and mouth disease has spr
2007年VOA标准英语（八月）
By Tom Rivers London 08 August 2007 For the first time since the confirmation of foot-and-mouth disease in Britain earlier this month, the government has decided to ease restrictions on livestock shipments in areas outside of the affected zone in sou
2007年VOA标准英语（八月）
FAO Issues Avian Flu Warning 世界粮农组织发布禽流感警报 Avian flu continues to pose serious health threats to both human and animal health, especially as the flu season approaches. Thats the warning issued by the U.N. Food and Agricultur
VOA常速英语2013年(九月)
GUANGZHOU, Jan. 31 (Xinhua) -- The number of H7N9 human cases in south China's Guangdong Province reached 30 since the start of the year with two more cases reported, local health authorities said Saturday. A 48-year-old man from Jieyang City died on
英语新闻
South and Southeast Asian countries are grappling with new outbreaks of bird flu as winter weather sweeps across the region. The latest outbreaks are still confined primarily to poultry, but one new human death has been reported in Vietnam. 亚及东南
VOA双语新闻 2008年1月
By Tom Rivers London 13 November 2007 Authorities in Britain have ordered the culling of thousand of turkeys and other birds at a farm northeast of London where a deadly strain of avian flu has been detected. For VOA, Tom Rivers reports from the Brit
VOA常速英语2007年（十一月）
While it may seem counterproductive for members of the same species to eat each other, cannibalism can promote the survival of the species as a whole by reducing competition, culling the weak, and bolstering the strong. 虽然对于同种族的成员来
留美老师带你每日说英文
Broadcast on COAST TO COAST: February 12, 2004 AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster -- enough about politics, today we talk about love! RS: We were searching for a topic for Valentine's Day -- it's this Saturday, you
词汇大师(Wordmaster)
Bird flu has broken out on a poultry farm 200 kilometers to the south of Beijing. Authorities have closed off the area within a 3-kilometer radius of the farm in Baoding city, Hebei Province. Ning Hong reports on what other measures are being taken.
CCTV9英语新闻2013年12月