碳弧气刨时()等现象,统称为刨槽型状不符合要求。 ["夹碳","刨槽型装不对称","刨槽宽窄","深浅不均","刨偏"]
氧气纯度对气割() ["速度","气体消耗量","能力","割缝质量","后拖量"]
焊钳是用以() ["夹持焊条","夹持碳棒","传导电流","焊接的工具","清渣工具"]
简述智能建筑系统集成的目标
液化石油气的火焰温度比乙快火焰的温度()。因此气割时预热时间()些,但可以减少切口边缘的()现象。 ["A.高","B.低","C.稍长","D.过热","E.过烧"]
建筑智能物业管理要实现哪些管理目标?