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为方便施工和节约时间,一到汛期,沿大江。大河两岸及附近用秸杆、芦苇、草席等易燃材料搭建了大量的供防汛人员居住。储存物资、灾民临时避难用的简易防汛工棚,但是如果忽视了消防安全,就会造成不应有的损失,甚至耽误防汛时机,一定程度上会影响防汛工作的正常进行。所以加强防汛工棚的消防安全管理,是防汛工作中的一项重要任务。简易防汛工棚普遍存在的消防安全问题1)搭建急促,忽视消防安全要素;是造成简易防汛工棚火灾隐患的根本原因。简易防汛工棚一般都是在临用时才搭建的,对工棚的选址。防火间距、用途、储存物品的火灾危险… 相似文献
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A novel structure of a VDMOS in reducing on-resistance is proposed.With this structure,the specific on-resistance value of the VDMOS is reduced by 22%of that of the traditional VDMOS structure as the breakdown voltage maintained the same value in theory,and there is only one additional mask in processing the new structure VDMOS,which is easily fabricated.With the TCAD tool,one 200 V N-channel VDMOS with the new structure is analyzed,and simulated results show that a specific on-resistance value will reduce by 23%,and the value by 33% will be realized when the device is fabricated in three epitaxies and four buried layers.The novel structure can be widely used in the strip-gate VDMOS area. 相似文献