海洋生物环

美国科学60秒 SSS 2013-07-29

The lunar cycle affects the night sky, the tides, and even the fertility of certain marine species. And it turns out, we can add your shuteye to the list. According to a new study, humans sleep poorly on nights near full moon. The work is published i

发表于:2018-12-24 / 阅读(28) / 评论(0)

Scientific American(七)月

Earth and Sky:Fire Cycle 火灾规律

Fire Cycle 火灾规律 The El Nino phenomenon of 1997-98 unleashed torrential rain in some parts of the world, while creating abnormally dry conditions in others. And it sparked record numbers of wildfires. Learn more about climate and wildfire -- toda

发表于:2019-01-02 / 阅读(125) / 评论(0)

(科普英语)Earth and Sky

Biosolids

By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode

发表于:2019-01-02 / 阅读(73) / 评论(0)

VOA2003（下）-农业与经济

AMERICAN MOSAIC - The Marine Corps Celebrates Its 230th Birt

AMERICAN MOSAIC - The Marine Corps Celebrates Its 230th Birthday By Nancy Steinbach and Katharine Gypson Broadcast: Friday, November 11, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC in VOA Special En

发表于:2019-01-02 / 阅读(90) / 评论(0)

American Mosaic

US Marine Dies in Afghan Clash

Michael Kitchen An armed clash in central Afghanistan has left one U.S. Marine dead and another injured. The fighting comes amid efforts by neighboring Pakistan to root out Afghan militants hiding on

发表于:2019-01-31 / 阅读(47) / 评论(0)

VOA2004（上）--各类新闻

NE China to set up two drone bases for marine surveillance

NE China to set up two drone bases for marine surveillance SHENYANG, Oct. 20 (Xinhua) -- Two drone bases will be established in northeast China's Liaoning Province for real time surveillance on coastal waters, local authorities said Saturday. One of

发表于:2019-02-08 / 阅读(73) / 评论(0)

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单词：marine biocycle

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