Of the respective numbers of incidents of gas leakage and explosion of oxygen cylinders in public hospitals in each of the past three years （二）过往三年，每年分别在公立医院内发生的氧气樽气体泄漏和爆炸事故的数目；
To optimise efficiency , great care has been taken in the design of the system to eliminate air entering the process and to prevent produced gas escaping 要优化效率，在设计系统时已加以注意以防止气体进入处理过程，并防止产生的气体泄漏。
In addition to radioactive water , it ' s now emerged that radioactive gas has escaped and the drums containing radioactive waste burst open during the quake 除了含辐射物的废水，目前有信息披露在地震中有放射性气体泄漏和罐装放射性废料爆裂。
The other was a no . 3 alarm fire arising from a gas leakage and explosion on october 30 in wong tai sin ; three people died and 21 others , including 13 fire services members , were injured 另外一宗是十月三十日在黄大仙发生的三级火警，火警由气体泄漏和爆炸引致，造成三人死亡、 21人受伤，伤者包括13名消防处人员。
This thesis is based on the theory of the unexpected release of energy in safety system engineering and applies the relevant principle in risk assessment . three kinds of methods , such as dow fire & explosion index , ici / mond index , grey clustering procedure and three mathematical models , such as bleve accidental model , vce accidental model , the model of leakage & diffusion of posionous gases are applied to the risk asssessment of lpg terminal 本文以安全系统工程中的能量意外释放理论为理论基础，根据安全评价的相关原理，综合运用三种方法：道氏火灾爆炸指数法、 ici mond法、灰色聚类法以及三个模型： bleve事故伤害模型、 vce事故伤害模型、有毒气体泄漏扩散模型，对液化石油气码头的储运进行了风险综合评价。
