According to NASA, a total eclipse, when the moon passes between the earth and the sun, is only visible from a narrow strip - about 150 km wide - of the Earth's surface at any one time.
据美国宇航局所说，整个日食过程，即在月亮位于地球和太阳之间的时间内，也仅仅在地表一条约150公里宽的狭长地带的某一时刻可以观看到。
Ophir Chasma is a large west-northwest-trending trough about 62 miles, or 100 km, wide.
俄斐峡谷是一个宽约62英里，或100公里的，朝向西北偏西方向的大低谷。
On the average the continental shelf is about 70 km wide. One much of the Pacific Coast it is relatively narrows, only a few tens of kilometers across.
平均来说，大陆架约为70公里宽，在部分太平洋海岸其大陆架较窄，只有几十公里宽。
For scale, the large impact crater in lower right corner is about 18.5 miles, or 30 km, wide.
右下角的巨大陨石坑按比例宽约18.5英里，或30公里。
The reservoir is 400 km long, 15 km wide and 100 m deep.
整座水库长400千米，宽15千米，深100米。
It is more than 4,000 miles (6,000 km) wide where Columbus crossed it.
哥伦布穿越过的地方宽达4000多英里(6000公里)。
The mine has been in production since 1906, and has resulted in a pit over 1.2 km deep, 4 km wide, and covering 7.7 square kilometers.
这个矿井与1960年开始出产铜矿。 铜矿的开采知识这里出现了一个深1.2米，宽4米，面积为7.7平方千米的深坑。
Scientists estimate the Kuiper belt is likely home to hundreds of thousands of icy bodies larger than 60 miles (100 km) wide, as well as an estimated trillion or more comets.
科学家估计柯伊伯带很有可能存在有几万个大小超过60英里(100公里)的冰矮天体，还有数量在万亿以上的彗星。
Helicopters carrying equipment to blast the sides of the barrier lake, which is 3 km long, 100 meters wide and 9 meters deep, have been pressed into service.
直升机携带设备炸毁3公里，100米宽，9公尺深的堰塞湖，被作为救援的路径。
Because it is virtually an enclosed basin, with an outlet to the sea only 55 km wide at the Strait of Hormuz, the gulf is especially vulnerable to oil spills.
由于波斯湾实际上是个封闭的盆地，只在霍尔木兹海峡有个宽仅55公里的入海口，因此遇到溢油特别容易损害。
The thicker coal seams are located in a 10-15 km wide belt along which the channel meanders .
较厚的煤层位于河道发生弯曲的、宽10-15公里的地带内。
It is 20 meters wide, with a total length of 120 km, slow water flow, a string of small lakes have been reed, surrounded by red.
它有20米宽，总长约120公里，水流迟滞，一串串小湖沼被芦苇、红柳环绕。
A strip of land, about '4 km (40 mi) wide at its narrowest point, linking the Malay Peninsula with the Asian mainland.
一块狭长的地带，最窄的地方宽约'4公里(40英里)，它连接着马来半岛与亚洲大陆。
Pingyao city wall for the Ming Hongwu three years (1370) built, the circumference of 6.4 km, 12 meters high wall around the appearance of all brick, wall moat, deep and wide 4 meters.
平遥城墙为明洪武三年(1370年)所建，周长6.4公里，墙高12米左右，外表全部砖砌，墙外有护城河，深广各4米。
A strategically important strait, 27.4 km (7 mi) wide, between the Arabian Peninsula and eastern Africa. It links the Red Sea with the Gulf of Aden.
阿拉伯半岛和非洲东部之间的一条重要的战略海峡，宽27.4公里(7英里)。和亚丁湾与红海相连。
Here is the second largest city in Xinjiang, a wide road to here, now can drive the four hours from Urumqi to the city, only 468 km.
这里是新疆第二大城市，到这里路很宽，现在开车4个小时可以到，从乌市到库市，只有468公里。
A river of south-central Scotland flowing about 187 km (116 mi) eastward to the Firth of Forth, a wide inlet of the North Sea.
福思湾：苏格兰中南部的一条河流，向东187公里(116英里)流至福思湾河口，是北海的一宽阔入口。
A river of south-central Scotland flowing about 187 km (116 mi) eastward to the Firth of Forth, a wide inlet of the North Sea.
苏格兰中南部的一条河流，向东187公里(116英里)流至福思湾河口，是北海的一宽阔入口。
About 65 km east county, 50 km wide north-south, south-east and the high-lying low in the northwest.
县域东西长约65公里，南北宽约50公里，地势西北高而东南低。
In the centre of the image, the floor of an impact crater almost 50 km wide is covered in dark material.
在图像的中心，一个陨石坑地面将近50公里宽覆盖着黑色的物质。
Nanxiong red layer is located in the red rock Nanxiong Basin, about 80 kilometers wide and 18 km, an area of about 1500 square kilometers.
南雄红层是指位于南雄盆地的红色岩层，长约80公里，宽18公里，面积约1500平方公里。
The deformation band is about 42 km long, 8km wide.
形变带长约42公里，宽约8公里，垂直位错量1—2米。
Human habitation of this elongated sand dune peninsula, 98 km long and 0.4-4 km wide, dates back to prehistoric times.
这个延伸出来的沙丘半岛长98公里，宽0.4 -4公里，史前时代就有人类居住。
The Zambezi River, which is more than 2 km wide at this point, plunges noisily down a series of basalt gorges and raises an iridescent mist that can be seen more than 20 km away.
赞比西河宽度超过2公里，瀑布奔入玄武岩峡谷，水雾形成的彩虹远隔20公里以外就能看到。
It was visible along a roughly 250 km-wide (155 miles) corridor, U. S. space agency NASA said.
NASA称可见区域是一条宽度约为250千米（155英里）的狭长地带。
It was visible along a roughly 250 km-wide (155 miles) corridor, U. S. space agency NASA said.
NASA称可见区域是一条宽度约为250千米（155英里）的狭长地带。
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