Lax security allowed the thieves to enter. 松懈的保安措施使小偷有機可乘。
Airports in Britain and the United States increased security measures. 英國和美國的機場加強保安措施。
Along with the growing civil and military deployments of MANET, the security technology of the network receives increasing attention. 隨著移動自組網絡在民用和軍事領域應用增加，移動自組網絡安全技術研究日益受到人們重視。
This paper deals with the production and properties of iso-pentane blown PU rigid foams,and safety control. 本文將詳細討論異戊烷發泡聚氨酯硬泡的生產和泡沫性能及安全控制。
