helium造句
- 1. Helium is a very light gas.
- 氦是一种很轻的气体。
《柯林斯英汉双解大词典》
- 2. Atoms of hydrogen are fused to make helium.
- 氢原子可熔合成氦。
《牛津词典》
- 3. Helium is a gas used in balloons.
- 氦是一种用于气球的气体。
《新英汉大辞典》
- 4. It contained very little hydrogen and helium.
- 它含有非常少的氢和氦。
youdao
- 5. Hydrogen turns into Helium, which releases energy.
- 氢变成氦的时候会释放能量。
youdao
- 6. The loss of helium on Earth would affect society greatly.
- 地球上氦的减少将对社会产生重大影响。
youdao
- 7. So you are saying that Helium was discovered on the sun first.
- 所以你是说，氦最初是在太阳上被发现的。
youdao
- 8. A regulatory agency should ensure that helium is used carefully.
- 应该有一个监管机构确保氦的使用是谨慎的。
youdao
- 9. Deflated values also mean that natural gas extractors see no reason to capture helium.
- 放气值也意味着天然气提取器认为没有捕获氦的需要。
youdao
- 10. National Helium Reserve to liquidate its helium assets by 2015 regardless of the market price.
- 无论市场价格，国家氦储备局将在2015年之前清算其氦资产。
youdao
- 11. Helium is the by product of millennia of radioactive decay from the elements thorium and uranium.
- 氦是钍和铀元素数千年放射性衰变的副产品。
youdao
- 12. By selling the helium, the government can not only pay off that debt but reduce its overall debt as well.
- 政府通过出售氦不仅可以偿还债务，还可以减少总体债务。
youdao
- 13. Another important attribute is the unique boiling point of helium, which is lower than that of any other element.
- 另一个重要的特性是氦的独特沸点，比其他任何元素的沸点都低。
youdao
- 14. The pressure of the helium inside a blimp is about the same as that of the air outside, so the gas does not rush out.
- 气球飞艇内部氦气的压力和外部气压相近，因而气体不会溢出。
youdao
- 15. The Jovian planets have very thick atmospheres consisting of varying amounts of hydrogen, helium, methane, and ammonia.
- 木星的行星有非常厚的大气层，且由不同数量的氢、氦、甲烷和氨等元素组成。
youdao
- 16. In fact, 24 per cent of our galaxy elemental mass consists of helium, which makes it the second most abundant element in our universe.
- 事实上，银河系中24%的元素质量是由氦组成的，这使它成为宇宙中第二丰富的元素。
youdao
- 17. The inner envelope filled with helium in the head section of the blimp and the third built-in airbag at the tail is filled with ethane combustible gas.
- 飞船头部的内置气囊中充满了氦气，而置于尾部的第三节内置气囊则充满了乙烷可燃气体。
youdao
- 18. All existing supplies of helium ought to be conserved and released only by permit, with medical uses receiving precedence over other commercial or recreational demands.
- 现有的所有氦供给应该被保存下来，并且只有在获得许可的情况下才能释放，医疗用途优先于其他商业或娱乐需求。
youdao
- 19. Firstly, all existing supplies of helium ought to be conserved and released only by permit, with medical uses receiving precedence over other commercial or recreational demands.
- 首先，所有现有的氦供应应该被保存下来，并且只有在获得许可的情况下才能释放，医疗用途应优先于其他商业或娱乐需求。
youdao
- 20. The Congress is ignorant of the consequence of fire sale: global helium prices are so artificially deflated that few can be bothered recycling the substance or using it judiciously.
- 国会对廉价出售的后果一无所知：全球氦气价格被人为压低，以至于几乎没有人愿意回收这种物质或明智地使用它。
youdao
- 21. However, the amount of helium in the universe, as measured by spectroscopy, suggests that there are far more baryons in the universe than estimates based on galactic luminosity indicate.
- 然而，通过光谱学测量，宇宙中氦的数量表明，宇宙中重子的数量要比基于星系光度所估计的要多得多。
youdao
- 22. Stars like our sun fuse hydrogen in their cores into helium.
- 太阳一类的恒星在其核心将氢聚变成氦。
youdao
- 23. GIANT inflatable helium balloons.
- 巨大的充气氦气球。
youdao
- 24. Where did this man get the helium?
- 这个人是从哪儿得到氦气的呢？
youdao
- 25. So what is the charge on a helium nucleus?
- 那么氦原子核的电荷量是多少呢？
youdao
- 26. If helium loses on electron, what do we have?
- 如果氦原子失去了一个电子，我们得到了什么？
youdao
- 27. The balloon may be filled with helium or hydrogen.
- 气球中可能会充满氦气或者氢气。
youdao
- 28. When it decays, it becomes a stable form of helium.
- 当它衰变时，它以稳定的氦气形式存在。
youdao
- 29. Clearly, helium has the least polarizable electron cloud.
- 显然，氦的可极化电子云最小。
youdao
- 30. Previous observations had traced only incoming helium atoms.
- 以前的观测只追踪了氦原子。
youdao