交易安全属于法的安全，其为动态安全之范畴。
Transaction security belongs to law 's security and pertains to the category of dynamic security.
许多国家都对水力破裂法的安全性表示担心，这种技术是把高压液体注入页岩致岩石破裂从而挤出其中存储的天然气。
Concerns have been raised in many countries about the safety of fracking, a technique in which high-pressure fluids are pumped into shale to fracture the rock and force out natural gas.
最近的安全锚地位于新斯科舍哈利法克斯。
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