现在He2,稳定吗?
Whether the section coal pillar is stable or not is the key to safety of irregular blocks coal mining.
区段保护煤柱的稳定与否是不规则块段安全开采的关键。
Objective In order to study the testing numerical value of urine iodine and hair iodine is stable or not.
我们根据发碘的测定值可以探讨本地区的发碘正常值范围。
Now, He2, stable or not?
现在He2,稳定吗?
Or vaccines that could be transported more easily— the hepatitis vaccine that we get is not stable unless it's refrigerated.
或者令疫苗更易于运输,现在的肝炎疫苗一定要冷藏,否则它就不稳定
The question now is, is H2 stable or will it not form?
现在的问题是,H2稳定吗,它到底会不会形成?
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