For those who can get here in summer, these waters provide a feast of epic proportions. But the good times will be very short, a problem that faces all life in the Polar Regions. Journeying the south across the Arctic Ocean, the first land you/ reach

发表于:2018-12-26 / 阅读(30) / 评论(0) 分类 自然百科2012年

Amid the recent economic downturn, demand in the U.S. is rising for small wind turbines to power people's homes. The American Wind Energy Association says sales of such turbines rose 15 percent in 2009. One man in Florida is generating his own power

发表于:2019-01-04 / 阅读(65) / 评论(0) 分类 VOA标准英语2010年(六)月

To maintain this one o’clock posture through to the end, it helps to picture your head resting on a pillow at the finish. Since the lie angle (the angle from the ground to the shaft when the club is

发表于:2019-01-07 / 阅读(106) / 评论(0) 分类 奥运英语

Bird-friendly Bladeless Wind Turbine Mimics Nature Energy created by conventional three-blade wind turbines is cheap, sustainable and pollution-free. But according to current estimates, the devices' fast-moving blades kill up to 300,000 birds annuall

发表于:2019-01-14 / 阅读(90) / 评论(0) 分类 VOA标准英语2015年(十一月)

society, that first brought civilization to the desert. Far from just scraping by in this harsh landscape, the Garamantes were flourishing. They grew crops, such as cereals and grapes. They kept horses and pigs. Clearly, they needed large amounts of

发表于:2019-01-22 / 阅读(39) / 评论(0) 分类 自然百科2010年

4名中国工人在厄瓜多尔爆炸中丧生 QUITO, April 2 (Xinhua) -- Four Chinese workers were killed by an explosion at the construction site of the Sopladora hydroelectric station in Ecuador, the Chinese embassy has confirmed Wednesday. The bl

发表于:2019-02-04 / 阅读(53) / 评论(0) 分类 英语新闻