翻译和例句：
《飞屋》梦想成真。THE National Geographic Channel makes the flying house in the film Up real. They made a light wooden house which weighs about 900kg. Scientists tied 300 balloons with helium (氦) to the house ……
印度称2007年发射月球飞船 INDIAN President (总统) Abdul Kalam says his country will send (发射) a spaceship to fly around the moon in 2007. The spaceship will study the moon. There is a lot of hydrogen (氦 ……
are actually a mixture of foam (泡沫) and lighter-than-air gases such as helium (氦).The company uses ……
balloon filled with helium (氦) gas will carry them about 40 km above the Earth’s surface ……
energyHelium-3 (氦-3) is a valuable fuel that can provide safer nuclear energy (核能). Scientists found... to have clean energy for 10,000 years! Powerful energyHelium-3 (氦-3) is a valuable fuel that can ……
behind avoiding helium (氦) exposure during document preservation (保存).But I believe the point lies... interest in the chemistry behind avoiding helium (氦) exposure during document preservation (保存 ……
. It could be used for air travel. The airship uses helium (氦), a gas (气体) lighter than air, to lift... is quite environmentally friendly. It could be used for air travel. The airship uses helium (氦 ……
that this “fluffy” planet is mostly made from hydrogen (氢气) and helium (氦). Scientists recently...) and helium (氦). Human pee fertilizer Human pee fertilizer 人类 ……
2.Frenchman Pierre Chabert was awarded for developinghelium(氦) balloons with internal light sources ……
.---------------------------------------capsule: 太空舱comet: 彗星helium: 氦minuscule: 极小的interstellar: 星际的sparse: 稀少的speck ……
resources (资源). Helium-3 (氦3，元素名) is one of them. It’s a great energy source. But the moon is just ……
avoiding helium (氦) exposure during document preservation (保存).But I believe the point lies... in the chemistry behind avoiding helium (氦) exposure during document preservation (保存).Overall ……
on the lawn, suggesting that they had been blown up with normal air, nothelium(氦). And yet, on a windless ……
to build, and the 128 tons of liquid helium (氦) needed to cool the machine.The day it turns ……
with helium (氦) to just over two meters and weighed just 1.5kg," said Marull. "It was able to carry ……
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