(usg 的第三人称 -s形式) abbr. 超声成像；美国加仑；[医]超声波检查（ultrasonography）；美国标准度量（United States Gauge）

-s form of usg

VOA慢速英语--False Earthquake Alarm Sends Tremors Across Twitter

This is Whats Trending Today. Earthquakes are not uncommon in southern California. Citizens there know how to react and respond if the ground starts shaking. On Wednesday night, many of them received an email from the U.S. Geological Survey that warn

发表于:2018-12-07 / 阅读(240) / 评论(0)

2017年VOA慢速英语(六)月

False Earthquake Alarm Sends Tremors Across Twitter

发表于:2018-12-07 / 阅读(269) / 评论(0)

2017年VOA慢速英语(六)月

SSS 2011-08-23

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To be honest with you, I didnt feel a thing. But many other Scientific American staffers felt the shaking a few minutes before 2 P.M. Eastern time. After checking Twitter

发表于:2018-12-24 / 阅读(298) / 评论(0)

Scientific American(八)月

5.6-magnitude quake hits off the east coast of Honshu, Japan -- USGS

HONG KONG, Dec. 8 (Xinhua) -- An earthquake measuring 5.6 on the Richter scale jolted off the east coast of Honshu, Japan at 23: 00:02 GMT on Friday (07:00:02 Beijing Time), the U.S. Geological Survey said. The epicenter, with a depth of 34.20 km, wa

发表于:2019-01-19 / 阅读(327) / 评论(0)

英语新闻

英语听力：自然百科北极海冰融化海象上岸

Extreme ice melting led to thousands of walruses making an unusual gathering on the barrier island in Alaska. Biologists with the U.S. geological survey say the situation can be very dangerous, because walruses are easily startled and can't stampede.

发表于:2019-01-22 / 阅读(216) / 评论(0)

自然百科2010年

VOA常速英语2019--美国地质局推出先进的地震预警系统

Californians participated in an annual drill, and helped prepare for what scientists say could strike at any moment, an earthquake. Scientists have also been busy preparing. The US Geological Survey recently unveiled its new earthquake alert system c

发表于:2019-02-24 / 阅读(333) / 评论(0)

VOA标准英语2019年(二月)

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ammonia leach-hydrogen reduction process