复合组织移植术

Grafting

By Mario Ritter Broadcast: August 12, 2003 This is Bill White with the VOA Special English Agriculture Report. We often think of agriculture as planting seeds and harvesting crops. But many crops do n

发表于:2018-12-07 / 阅读(52) / 评论(0)

VOA2003（下）-农业与经济

VOA慢速英语 2007 0102a

This is the VOA Special English Agriculture Report. These days, if we hear about two different plants being combined, the first thing we think of might is modern biotechnology. But the low-technology process of grafting remains an extremely important

发表于:2018-12-15 / 阅读(51) / 评论(0)

VOA慢速英语2007年（一）月

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AGRICULTURE REPORT - For Eating or Looking: Wild About CherriesBy Mario Ritter Broadcast: Tuesday, March 28, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. There is something ha

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2006年慢速英语（三）月

VOA慢速英语2010年-Agriculture Report - Why Grafting Stil

Grafting is a way to produce plants from pieces of existing plants instead of seeds. Branches or buds are cut from one plant and placed on a related kind of plant. The branch or bud that is grafted is called the scion. The plant that accepts the graf

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2010年VOA慢速英语(五)月

60秒科学:Beating Heart Tissue from Stem Cells

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

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HEALTH REPORT - Fetal Skin Cells May Treat Burns

HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may

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学英语单词

acid waste sludge

addition-without-carry gate

be first off the mark

biotechnicians

Bromochlortrifluoraethanum

centring element

chemical reprocessing plant