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疏散走道两侧应采用一定耐火极限的隔墙与其他部位分隔,隔墙需砌至梁、板底部且不留缝隙。疏散走道两侧隔墙的耐火极限,一、二级耐火等级的建筑不低于(),三级耐火等级的建筑不低于()。
DS6-11型计算机联锁系统,在系统正常运行过程中.双机处于同步状态时,机柜上部面板上备机的“电源”﹑“控制”﹑“运行”﹑“同步”表示灯显示()。
磨削加工的实质是什么?
我国的矿产资源,种类(),储量丰富,其中钨、锑、锡、钼、锌、稀土、钒、钛等储量居世界()。
温胆汤的功用是()
CRH2A型动车组在进行换气装置试验时,需断开()车【制动控制装置】NFB,换气装置高速运转。
简述按物流的要素存在的冲突以及如何进行协调?
当TN500中的空气温度为36.5℃时,如果打开自动湿化,TN500会将箱内相对湿度调整为多少()
自动集中系统的分路道岔,因故不能转换到底时,应保证车辆未占用道岔区段时,电空转辙机经1.2~1.4S,道岔能自动返回原来位置。
下列有关无形资产会计处理的表述中,正确的有( )。
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Since the engine doesn’t work well, you’d better () as soon as possible.