However, if the planet is in a good position, astronomers look for three key things: water, air and rock.
然而如果这颗行星处于很好的位置，天文学家会寻找三样关键的东西：水、空气和岩石。
Two women were vacationing in Longboat Key while they were floating on the rubber boat along the shore, a water scooter crashed into them and kill them.
两名妇女在长艇岛度假，她们坐在岸边的橡皮艇上，一辆水上摩托车撞了她们，把她们撞死了。
Scientists agree that the key player in this scenario is the West Antarctic ice sheet, a Brazil-size mass of frozen water that is as much as 7000 feet thick.
科学家们一致认为，这一情境中的关键推手是南极西部的冰层，这是一块跟巴西（面积）差不多大小的冰原，厚达7000英尺。
Water is a key to the question of whether life, even in the form of microbes, ever existed on Mars. On Earth, all known forms of life require water.
水是一个是否有生命存在的关键问题，即使是以微生物的形式，火星上和地球上都曾经存在，所有已知的生命都需要水。
The key component in the process is a catalyst -- cobalt metal, phosphate and an electrode, placed in water -- that produces oxygen gas from water, while another catalyst produces hydrogen gas.
研究人员解释说，这个流程的关键组成成分是一个催化剂-放置在水中的钴金属、磷和电极-这个催化剂从水中产生氧气，另一个催化剂产生氢气。
Recently, scientist have also discovered comets in the main asteroid belt -these main-belt comets might be a key source of water for the inner terrestrial planets.
最近，科学家在主小行星带中也发现了一些彗星——这些主带彗星可能是类地内行星上水的关键来源。
Hoover Dam provided the two key ingredients - water and power - that freed the Southwest and southern California to go on a 75-year growth spurt.
胡佛水坝提供了两种关键的成分，水和电，使加州的西南部和南部实现了75年的井喷式增长。
When a dolphin pressed a certain key with her nose, researchers would throw the corresponding prop into the water.
每当海豚用前额按响一个键时，研究者们则会超水中抛下相对应的道具。
Researchers said the water with naringin served to block "a key drug uptake transporter, called OATP1A2, involved in shuttling drugs from the small intestine to the bloodstream."
研究人员指出用柚皮甙泡的水会阻碍运输药物的关键物质OATP1A2的转移作用，这是帮助药物从小肠进入血液的关键物质。
Not all fish move water in and out through these nares in quite the same ways, but key to a strong sense of smell for fish is the ability to move water rapidly over these sensory pads.
鱼并不都是以相同的方式让水在自己的鼻孔中进出的，但嗅觉敏锐与否的关键在于鱼是不是有能力让水快速通过自己的嗅觉感受器官。
First, we've tried to synthesize the science of water and climate change to provide a solid foundation for understanding key issues.
首先，我们试图将水科学与气候变化进行了综合，以便为弄清关键问题奠定坚实的基础。
As a main player on the water, sanitation and health stage, WHO is convening a key workshop on water Quality for Human health.
世卫组织作为饮水、卫生和健康舞台的主角，将召开一次人类健康水质方面的重要研讨班。
In 2008, the Phoenix Mars Lander sent back photos of ice chunks it had found after scooping up handfuls of soil, a huge discovery in the search for liquid water — a key ingredient for life.
2008年，凤凰号火星探测器传回的照片中有经过挖掘土壤而找到的冰块，这在寻找液态水的过程中是一项重大发现——也是生命存在的关键因素。
The PUB puts sensors only in a few key spots, for instance where water leaves the reservoirs.
新加坡公用事业局只在几个关键位置安装了传感器，例如，在水库取水点上安装传感器。
Key to the product's versatility is the fact it can be sold in a solution of either alcohol or water, depending on what surface needs to be coated.
这种产品的通用性关键是，事实上可以根据需要涂抹的表面类型，以酒精或水溶液的形式销售这种产品。
The report said that a dramatic reduction in duck numbers spending the winter at Lough Neagh in Northern Ireland, suggested some key bodies of water in Europe were no longer freezing over.
报告称，在北爱尔兰的内湖过冬的鸭子数量急剧减少，这表明，冬天欧洲大陆某些地方的水域不再结冰。
Europa is covered in a shell of water ice that's thought to hide an ocean of liquid water below. Liquid water is a key ingredient for life as we know it.
木卫二由水冻冰层所覆盖，人们认为其下流动着大量的液态水，而正如人们所知，液态水是生命存在的重要因素。
And a good guess is that that vapor pressure here, it's pretty close to the pressure that you would guess by using this diagram with the pure water. But the key word is, it's pretty close.
对吗？一个比较好的猜想就是，这里的蒸汽压非常接近那个大气压,我们利用纯水的相图计算得到的,关键是，非常接近。
After waiting a few minutes, Megan appeared out of the water with a key in her hand.
几分钟之后，梅金露出了水面，手里拿着把钥匙。
"If we cannot find water, it really makes it difficult to send humans. Water is the key, " said Thompson, who was attending a mining engineers" conference.
汤普森在参加一个采矿工程师会议时说：“如果我们找不到水的话，把人类送上火星是非常困难的。水是关键因素。”
Josh Chin and Zachary Slobig report from Xinjiang, where water security is a key question for residents.
乔希？覃和扎克瑞·斯洛比格从新疆报道，在那里水安全对当地居民来说是一个关键问题。
Water is not only used as a key ingredient of human subsistence but also a source of oxygen and rocket fuel necessary for the human lunar bases.
水不仅是宇航员在月球上的重要生存资源，还是月球基地所需氧气和运载火箭燃料的来源。
It was shown that wetland water was a key factor affecting primary production in wetland ecosystem.
湿地水分条件是影响湿地生态系统初级生产力的决定因素。
Therefore, rain Water is considered as a key period for irrigation when the day gets warmer and rainfall increases.
因此，雨水气候变暖，雨量增加时灌溉的关键时期。
Therefore, rain Water is considered as a key period for irrigation when the day gets warmer and rainfall increases.
因此，雨水气候变暖，雨量增加时灌溉的关键时期。
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