铁口的烘炉导管,应伸到炉底()处。A.中心 B.炉缸直径的1/3 C.炉缸直径的1/ 发布时间:2019-10-14 08:36 │ 来源:www.tikuol.com 题型:单项选择题 问题: 铁口的烘炉导管,应伸到炉底()处。A.中心B.炉缸直径的1/3C.炉缸直径的1/4
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