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- helium cadmium laser 氦镉激光器
- Helium Cadmium Lase 氦镉激光器
- Helium and neon are inert gases. 氦和氖为惰性气体。
- cadmium laser 镉激光器
- The antimatter equivalent of helium. 反氦与氦等价的反物质
- Helium was discovered on the sun. 氦是在太阳上发现的。
- Most big balloons are now filled with helium. 现在许多大气球中充的是氦气。
- EU clamps down on heavy metal cadmium in batteries. 欧盟限制在电池中使用重金属镉。
- A fountain of helium spurt out of the tube. 有一股氦的喷泉从小管中喷出。
- Tobacco smoke transports cadmium into the lungs. 吸烟的时候会把镉输送到肺部。
- Helium is a gas used in balloons. 氦是一种用于气球的气体。
- Cadmium is a good metal for this purpose. 镉是适合这一目的的优良金属。
- Atoms of hydrogen are fused to make helium. 氢原子可熔合成氦。
- The element of helium was first found in the sun. 氦元素最初是在太阳里发现的。
- Does not contain mercury or cadmium. 不含汞和镉。
- Cadmium used in thick film circuits. 在厚的电路镀膜中采用的镉。
- You can be a helium hea without even trying. 你真是个大傻瓜，甚至连试都不试一下。
- Hydrogen provided more lift than helium. 氢气的上升性能优于氦气。
- Lead and cadmium in optical and filter glass. 光学和过滤玻璃中的铅和镉。
- It gets the hydrogen and helium right. 根据结果表示，氢元素和氦元素都比较正常。
