英语词汇helium-4怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
Unlike helium-4, it cannot be produced by radioactive decay.
与氦- 4不同之处是，氦- 3不能由放射性衰变产生。
2
Because of this, the quality of helium-4 nucleus has been reduced.
正因为这样，氦4原子核的质量减少了。
3
Like deuterium, it is rare relative to helium-4, but, unlike hydrogen, helium doesn't form chemical compounds as abundant as water.
象氘一样，相对于氦- 4它是非常罕见的，但是不同于氢，氦不是来自化学混合物象水那样丰富。

单词	helium-4
释义	helium-4 简明释义氦-4 网络释义短语 1 helium 3-helium 4 mixture 氦3氦4混合体 2 Helium-3 and Helium-4 Mixtures 氦 3 helium 4 氦双语例句 1 Unlike helium-4, it cannot be produced by radioactive decay. 与氦- 4不同之处是，氦- 3不能由放射性衰变产生。 2 Because of this, the quality of helium-4 nucleus has been reduced. 正因为这样，氦4原子核的质量减少了。 3 Like deuterium, it is rare relative to helium-4, but, unlike hydrogen, helium doesn't form chemical compounds as abundant as water. 象氘一样，相对于氦- 4它是非常罕见的，但是不同于氢，氦不是来自化学混合物象水那样丰富。
随便看	waiting periods waiting place waiting position waiting post waiting process waiting program waiting qi waiting queue waiting queue channel waiting queuing waiting repair time waiting-room waiting room waiting room bench waiting-room bench waiting room waiting room waiting waiting signal waiting space Waiting staff waiting state waiting status waiting system waiting task