单词:pull-type rotary plow
单词:pull-type rotary plow 相关文章
SCIENCE IN THE NEWS - Fight to End Polio a Story of Unexpected Problems, but Also Progress Over the years, polio experts have had to learn to deal with surprises. Transcript of radio broadcast: 03 March 2008 VOICE ONE: This is SCIENCE IN THE NEWS in
Farmers Urged to Throw Plow Away Since the dawn of agriculture, tilling the soil has been fundamental to farming. But today, experts say this age-old practice may do more harm than good, at least in some places. That's why they've been telling farmer
This is the VOA Special English Development Report. An Afghan girl receives a dose of polio vaccine The World Health Organization has begun to use a new vaccine against polio. Officials say it will become a major tool in the campaign to end a disease
oil field 油田 wildcat 盲目开掘的油井 percussive drilling 冲击钻探 rotary drilling 旋转钻探 offshore drilling 海底钻探 well 井,油井 derrick 井架 Christmas tree 采油树 cr
Christmas in America means different things to different people. To some people, Christmas means brightly wrapped packages under a decorated tree. To others, it means family reunions and a wonderful meal together. To Christians, it means Jesus' birth
今天我们要学的词组是plow into。Plow into,意思是大力撞击。 At least 13 people have died after a van plowed into pedestrians in the center of Barcelona on Aug 17th in what police said was a terrorist attack. 8月17日,一辆厢式货