SpaceX发射美军最先进的GPS卫星
时间:2018-12-24 08:06:36
(单词翻译:单击)
SpaceX has launched the U.S. Air Force's most powerful GPS satellite ever built.
SpaceX公司将美国空军最先进的GPS卫星送入太空。
A
Falcon1 9 rocket blasted off from
Cape2 Canaveral, Florida, on Sunday,
hoisting3 the satellite into orbit.
The satellite was supposed to soar Tuesday but rocket concerns and then weather delayed the flight.
Heather Wilson, secretary of the Air Force, says this next-generation GPS satellite is three times more accurate than previous versions and eight times better at anti-jamming. It's the first in a series and nicknamed Vespucci after the 15th-century Italian explorer who calculated Earth's
circumference4 to within 50 miles (80 kilometers).
Lockheed Martin developed the advanced GPS technology and is building the satellites at a facility near Denver.
Sunday's launch was Space X's 21st and final launch of the year, a company record.
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收听单词发音
1
falcon
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n.隼,猎鹰 |
参考例句: |
- The falcon was twice his size with pouted feathers.鹰张开羽毛比两只鹰还大。
- The boys went hunting with their falcon.男孩子们带着猎鹰出去打猎了。
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2
cape
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n.海角,岬;披肩,短披风 |
参考例句: |
- I long for a trip to the Cape of Good Hope.我渴望到好望角去旅行。
- She was wearing a cape over her dress.她在外套上披着一件披肩。
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3
hoisting
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起重,提升 |
参考例句: |
- The hoisting capacity of that gin pole (girder pole, guy derrick) is sixty tons. 那个起重抱杆(格状抱杆、转盘抱杆)的起重能力为60吨。 来自口语例句
- We must use mechanical hoisting to load the goods. 我们必须用起重机来装载货物。
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4
circumference
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n.圆周,周长,圆周线 |
参考例句: |
- It's a mile round the circumference of the field.运动场周长一英里。
- The diameter and the circumference of a circle correlate.圆的直径与圆周有相互关系。
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