... safety thermal-relief valve 安全放热阀 safety torch 安全手电筒 safety training 安全技术训练 ...
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Safety Coupling for Oxy-ace Torch 拮灯回火防爆器 ; 风煤表回火防爆器
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The official word is that the torch route was drastically changed because of "public safety, " but the crowd at AT&T Park was no threat to the runners.
官方说法：改变火炬接力路线是‘安全原因’。但这里根本不存在对接力手安全的威胁。
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