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Monday, September 12, 2022
Monday, September 12, 2022
Friday, September 16, 2022
问题:现场施工作业过程中,若现场条件发生变化,存在新的未削减风险,检修...
Monday, September 12, 2022
Friday, September 16, 2022
Saturday, March 2, 2024
问题:校正反应器内、外筒的同轴度时,其最大允许偏差不得超过()。...
Friday, September 16, 2022
问题:碳素结构钢Q235AF牌号表示中Q表示()、235表示()、A表...
Monday, September 12, 2022
问题:换热管的排列形式分为()排列,转角正三角形排列,()排列,转角正...
Friday, September 16, 2022
Friday, September 16, 2022
Monday, September 12, 2022
问题:碳石墨的渗透性可以浸渍各种不同材料来控制其()。除热固性树脂外,...
Monday, September 12, 2022
Monday, September 12, 2022
Friday, September 16, 2022
Monday, September 12, 2022
问题:呼吸阀内应安装静电输出装置,确保()保持等电位。...
Friday, September 16, 2022
Saturday, September 17, 2022
问题:加热炉检修内容应根据加热炉损坏程度,修理或更换()、弯管、管板和...
Friday, September 16, 2022
问题:O形圈的永久变形和弹性消失的重要原因是()。A、安装精度B、压缩量或拉伸量大C、工作温度高D、工作压力高...
Saturday, October 22, 2022