- ensure safety保安;
- employee safety and health员工安全和健康;
- food safetyn.食品安全;
- health and safety健康与安全;
- in safety处于安全状态[位置];
- margin of safety安全边际;
- structural linguisticsn.结构语言学;
- structural formula分子式，结构式;
- structural engineern.结构工程师;
- structural engineersn.结构工程师( structural engineer的名词复数 );
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