[网络] 线型酚醛树脂

Recycling Plastics When plastic containers are recycled, they are first cleaned, then ground into tiny pellets and put into a flotation tank. This separates out the various plastic resins from other waste material. Once they are separated out, the pl

发表于:2018-12-27 / 阅读(102) / 评论(0) 分类 英语时差8,16

StudyFindsHighLevelsofBPAinCannedFoodforKids The industrial chemical BPA has been used to make hard plastic bottles and the lining of food cans for decades. After studies indicated that the chemical could play a role in cancers, heart disease and abn

发表于:2019-01-13 / 阅读(82) / 评论(0) 分类 VOA标准英语2011年(九月)

There is a curse that has plagued humanity since ancient times. 从古代起就有一种诅咒一直让人类饱受折磨。 The Greeks fought it by chewing aromatic resins, while the Chinese resorted to egg shells. 古希腊人通过咀嚼芳香树脂

发表于:2019-01-17 / 阅读(106) / 评论(0) 分类 TED演讲教育篇

That dress looks perfect right off the rack, and that crisp button-down shirt is never going to be any brighter or whiter than the moment you buy it. So is it really necessary to go to all of the trouble of washing those brand-new garments before you

发表于:2019-01-20 / 阅读(114) / 评论(0) 分类 阅读空间

Preserved bodies help doctors understand diseases that have plagued humans for thousands of years Naomi Seck | Washington, DC 05 May 2010 Scientists say looking back can help them look forward, by revealing how the disease evolved over time. Related

发表于:2019-02-05 / 阅读(129) / 评论(0) 分类 VOA标准英语2010年(五)月
学英语单词
a bucket list
adamczyk
advocate
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after tank
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agency superintendency
alkali cracking
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anthropomorphosis
applin
Arizona State University
Asia North America Eastbound Rate Agreement
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bill payable at sight
carpellary bundle
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come out of his shell
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Cotula
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DLWL
effluent fees
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field level sensitivity
Gelidium japonicum Okamura
give ... off
glass-walled
glucose-fructose
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has difficulty with
heighways
imploring
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o.n.o
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of new
order Psittaciformes
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Paid Indemnity
pirates of the caribbean
plainwork
Power tests
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profit control
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Rhone
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UBD
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Yatta