即使像香料这样的高价商品，也必须大量运输，以证明环绕非洲大陆航行到印度和中国的费用和不便是合理的。
Even high-priced commodities like spices had to be transported in large bulk in order to justify the expense and trouble of sailing around the African continent all the way to India and China.
葡萄牙人瓦斯科·达·伽马在15世纪末环绕南非航行至印度，而到1502年的时候跨阿巴拉比的商队路线因政治动乱而被切断。
The Portuguese Vasco da Gama's Voyage around southern Africa to India took place at the end of the fifteenth century, and by 1502 the trans-Abrabian caravan route had been cut off by political unrest.
劳拉和她的支持者们已仔细制定出此次为期近两年的环球航行线路图，其中包括一条环绕非洲的备用线路，以便避开海盗出没的亚丁湾。
Laura and her supporters have carefully plotted a nearly two-year route from port to port around the world, including an alternative path around Africa to avoid the pirate-infested Gulf of Aden.
(美国)宇航局称，NASA的一个航天器开始绕水星轨道航行，成为第一个环绕太阳系最内侧行星飞行的航天器。
A NASA spacecraft began orbiting Mercury, becoming the first to fly around the solar system's innermost planet, the space agency said.
(美国)宇航局称，NASA的一个航天器开始绕水星轨道航行，成为第一个环绕太阳系最内侧行星飞行的航天器。
NASA spacecraft began orbiting Mercury, becoming the first to fly around the solar system's innermost planet, the space agency said.
在航行过太平洋之后他们骑车环绕了澳大利亚，登上了这里的最高峰Koscuiszko山。
After sailing across the Pacific they cycled across Australia and climbed its highest peak, Mount Koscuiszko.
环绕海滩航行了90英里之后，巴斯在西南方向发现了一块高地，正对着的海岬极为险峻——这里后来被称为威尔逊角。
After sailing along the Ninety-mile Beach, he saw high land to the south-west; and, standing out towards it, discovered the bold headland which was afterwards named Wilson's Promontory.
二十世纪七十年代，因为有海冰，环绕格陵兰沿岸航行一周需要三个星期，而现在只需要一天。
Journeys around Greenland's coast that would take three weeks in the 1970s because of sea ice now take a day.
费迪南，麦根兰的远征是第一次环绕世界的航行。
Ferdinand Magellan's expedition was the first to circumnavigte the globe.
海上环绕盐丘或其它环状物体进行地震数据采集时使用的一种技术，采集船只在环状物体上方以螺旋形路径航行。
A technique for Marine seismic acquisition around salt domes or other circular features in which the acquisition vessel travels in a spiral path above the feature.
这里可是前苏联发射太空船前往月球、金星、火星，还有宇航员升空环绕地球轨道航行的基地。
This was where the Soviets launched spacecraft headed for the moon, Venus and Mars, as well as cosmonauts headed for earth orbit.
这里可是前苏联发射太空船前往月球、金星、火星，还有宇航员升空环绕地球轨道航行的基地。
This was where the Soviets launched spacecraft headed for the moon, Venus and Mars, as well as cosmonauts headed for earth orbit.
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