正如自然中很难存在真空一样。 遵从经济学原理，“安全公司”这种可以解决黑客窘境的小型行业出现了，填补了业界的空白。
Since economics, like nature, abhors a vacuum, a small industry of “security companies” has emerged to exploit the hackers' dilemma.
本论文采用安全经济学基本原理，具体研究了建筑工程安全的投入、产出和效益。
Based on the theory of safety economics, this paper studies on safety inputs, safety outputs and safety benefits in construction projects.
本论文采用安全经济学基本原理，具体研究了建筑工程安全的投入、产出和效益。
Based on the theory of safety economics, this paper studies on safety inputs, safety outputs and safety benefits in construction projects.
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