三个互相替代但在许多方面有互补性的理论于1971年提出。
Three alternative but in many ways complementary theories were put forth in 1971.
系统安全方案可以在理论与实践之间形成互补。
A system safety approach can bridge gaps in disciplinary knowledge and practice, completing the whole.
系统安全方案可以在理论与实践之间形成互补。
A system safety approach can bridge gaps in disciplinary knowledge and practice, completing the whole.
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