1. 這種塑料在高溫下的安全性是否已檢測過？
   Has this plastic been tested for safety in great heat?
2. 在數據保密學中，對一個計算機系統(tǒng)的安全性的攻擊，用以測試安全的有效性及暴露弱點。
   In data security, an attack on the security of a computer system, undertaken to test the effectiveness of the security and to highlight any areas of weakness.
3. 內部和外部包過濾器和一臺單向定位的bastion主機的配置提供很好的安全性。
   The configuration of internal and external packet filter and a single home bastion host provide very good security.
4. 這種新飛機正在接受安全性能檢驗。
   The new aircraft is undergoing safety tests.

安全的英語翻譯：