A spectrum is formed by a ray of light passing through a prism.
一束光通过棱镜就会形成光谱。
Instead, they are shield volcanoes—volcanoes with broad, sloping slides formed by molten rock.
相反，它们是盾状火山——由熔融岩石形成的宽而倾斜的滑坡。
Instead, they are shield volcanoes — volcanoes with broad, sloping slides formed by molten rock.
相反，它们是盾状火山——由熔岩形成的宽而倾斜的滑梯。
In these regions there are vast ice-caps formed by snow that has fallen over the past 50,000 years.
在这些地区有巨大的冰帽，是由过去5万年的降雪形成的。
This is a bit disturbing, because the important habitual neural networks are not formed by mere routine, nor can they be reversed by clever cues.
这有点令人不安，因为重要的习惯神经网络不是仅仅通过例行程序形成的，也不能通过聪明的线索来逆转。
If we had rock samples to study, we'd know whether these small craters were formed by impacts during the final stages of planetary formation, or if they resulted from later meteor showers.
如果我们有岩石样本用于研究，我们就能知道，这些小陨石坑是在行星形成的最后阶段被撞击形成的，还是后来的流星雨造成的。
Unlike Oceanic islands that were once part of continental landmasses, islands formed by such geological processes as volcanism contain only plants and animals that could be transported there.
与曾经是大陆性陆地的一部分的海洋岛屿不同，由火山作用等地质过程形成的岛屿只包含可以被运输到那里的动植物。
These hills were formed by glaciation.
这些山丘是冰川作用形成的。
The company was formed by merging three smaller firms.
公司是由三家小公司合并组成的。
Small wonder that an Indian legend described Devils Tower as being formed by supernatural powers.
难怪印度传说中魔鬼塔是由超自然力量形成的。
The Mariner spacecraft found that the surface of Mars, as well as that of its two moons, is pitted with impact craters formed by meteoroids falling in from space.
水手号宇宙飞船发现火星表面，还有它的两个卫星表面，都有由太空坠落的流星体造成的陨石坑。
The bar was formed by the mud and sand deposited here over a long period of time.
河里的泥沙淤积在这里，年深日久便成了沙洲。
Most caves are formed by limestone, a carbonate rock.
大多数洞穴是由石灰岩形成的，这是一种碳酸盐岩。
The pair formed by the two cookies identifies the session.
由两个cookie形成的这对来鉴定一个会话。
It begins with an attraction, which is formed by that first impression.
由一种在第一印象里形成的叫吸引力的东西驱动着。
The layer formed by the liquid glass is said to be flexible and breathable.
据说，由液体玻璃形成的涂层具有可塑性和透气性。
Kyrgyzstan is one of the poorest countries formed by the break-up of the Soviet Union.
吉尔吉斯斯坦是由苏联解体形成的最贫穷的国家之一。
The institution was formed by 44 countries whereas its membership today stood at 186.
当时，世行只有44个成员国，而今天则有186个成员国。
An enclosure formed by a circle of wagons for defense against attack during an encampment.
车阵用运货车围成的围栏，用作营地的防御地区。
Some tried to read letters carved in wood or wax, formed by wire or outlined in felt with pins.
一些人尝试阅读刻在木头或是蜡上的文字，这些文字由金属丝构成，盲人们用大头针来触读这些文字。
A bottom-up estimate is one formed by compiling an estimate of the detailed tasks in the plan.
自底向上评估是通过编译计划中的详细任务的评估得到的结果。
Kapalua's white coral sand is protected by two headlands, formed by ancient lava flows into the sea.
很久以前的岩浆流入大海形成了两个岬，而这两个岬保护着卡帕·鲁亚湾的白珊瑚沙。
We know that probably at least 10 per cent of plant species were formed by some kind of hybridisation.
我们知道，大体上至少有10%的植物品种是通过杂交而形成的。
The central crater could be formed by unusual layers below the surface, or from a lucky second impact.
陨坑中心可能是由于不同寻常的下层地质结构导致的，也有可能因为幸运的二次撞击而形成的。
The central crater could be formed by unusual layers below the surface, or from a lucky second impact.
陨坑中心可能是由于不同寻常的下层地质结构导致的，也有可能因为幸运的二次撞击而形成的。
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