Danger zone division is one of the effective ways in natural disaster management and prevention.
危险区区划是自然灾害管理及其防治的一种有效工具和途径。
The division of the hydro-gen danger zone, the measures of explosion and firing protection for personnel as well as the equipments in the danger zone on the launch site are inlroduc-ed, too.
对氢危险区的划分和对氢危险区各类设备及人员所采取的防爆、防火措施。
The division of the hydro-gen danger zone, the measures of explosion and firing protection for personnel as well as the equipments in the danger zone on the launch site are inlroduc-ed, too.
对氢危险区的划分和对氢危险区各类设备及人员所采取的防爆、防火措施。
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