单词：harvesting machine
单词：harvesting machine 相关文章
Algae naturally produce oil, when its process start with oil turned into bio fuels, an alternative energy source. This is just one snag. Harvesting the oil from algae-float water is prohibitively expensive. But researchers have come up with an effort
Scientific American(一)月
Broadcast: May 12, 2003 By Jill Moss This is the VOA Special English Development Report. Each year, millions of people in Bangladesh drink ground water that has been polluted by naturally high levels
VOA2003（上）-社会广角
By Matt Steinglass Hanoi 20 September 2006 Black bear cubs An animal rights organization has reached an agreement with Vietnam's government to build a bear sanctuary near Hanoi. The refuge will house bears rescued from farms where their bile is harv
2006年VOA标准英语（九月）
AILSA CHANG, HOST: Sea salt has been harvested for more than a thousand years on the Atlantic coast of France. The industry declined in the mid-20th century. But with foodies looking for ever-fancier ingredients, NPR's Eleanor Beardsley reports the s
2017年NPR美国国家公共电台8月
Huang Jiefu, director of the China Organ Transplant Development Foundation, has told an international symposium on transplants in Hong Kong that persistent reports of organ harvesting taking place in China are simply not true. The rumor about organ h
2016CRI中国国际广播电台
In modern times, most people choose to use electrical devices, like refrigerators, to keep drinks cool. But summer visitors at Rockywold-Deephaven Camps in New Hampshire cool their drinks the old-fashioned way - using large blocks of ice in wooden bo
2019年VOA慢速英语(二)月