结论：除个别特殊物理环境下的工人外，不同工人群体的心理健康基本正常。
Conclusion: the mental health of these samples were basically normal except a few that were in special physical environments.
有许多可行性的方法是被个别的公民发掘的，但是在一个巨大的国际范围中，技术工人用单一的手段还从未成功过。
From the very start workable methods were found in so far as individual citizens were concerned, but the mechanics of an instrumentality of larger international scope have never been successful.
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