[化] 聚溴乙烯

【英语时差8,16】回收塑料

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(134) / 评论(0)

英语时差8，16

AGRICULTURE REPORT - Restrictions on Methyl Bromide

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(193) / 评论(0)

农业与发展

Study: Loss of Ozone Slows

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(157) / 评论(0)

VOA2003（下）-环境与健康

AGRICULTURE REPORT - Cover Crops

AGRICULTURE REPORT - Cover Crops By Mario Ritter Broadcast: Tuesday, March 23, 2004 This is Steve Ember with the VOA Special English Agriculture Report. The idea to grow a crop that improves the land

发表于:2019-01-30 / 阅读(164) / 评论(0)

农业与发展

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

AAML

acanthoclinid

accelerating potenial

account receivable leger

basic cobaltous chromate

Bergmann's rule