鼓入高炉的风中含水量(),炉温会升高。
使用钢管及复合管的采暖系统应在试验压力下10分钟内压力降不大于()MPa,降至工作压力的1.15倍,稳压2h,压力降不大于(),同时各连接处不渗不漏。 ["A、0.5MPa,0.03MPa","B、0.2MPa,0.03MPa","C、0.05MPa,0.03MPa","D、0.02MPa,0.03MPa"]
铁口深度是根据铁口区炉衬厚度规定的,铁口深度应稍()铁口区炉衬厚度。
以下哪些商品不可以采用吸光类商品的拍摄方法?() ["帆布鞋","衣服","亚光塑料","钻戒"]
柔性阳极应用时,也要使用()填包料。 ["硫酸钠","膨润土","细土","焦炭粉"]
铁矿石从炉顶装入高炉首先蒸发掉()、游离水。