["【Каждый день одна задача】Каталез,

2017-10-14View Original

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参与：奖5财富；回答正确：奖10财富；注：此贴有效时间48小时。选择题：采用焊接方式与壳体连接固定两端管板的是(　　)。 A、固定管板式换热器B、浮头式换热器C、U形管式换热器D、填料函式换热器答案：A动动手指参与进来，大家学到知识才是我们最终目的。http://bbs.hcbbs.com/static/image/hrline/1.gif http://bbs.hcbbs.com/static/image/hrline/2.gif 注：两天后答案自动公布。石化区---节能新想法之“脑洞大开”活动（第二期活动火爆进行中） http://bbs.hcbbs.com/thread-1666758-1-1.html 2017年煤化工之“我的技术改造” http://bbs.hcbbs.com/thread-1786290-1-1.html 【每日一题】催化焦化重整油品调和版2017年汇总贴 http://bbs.hcbbs.com/thread-1811219-1-1.html

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["【Каждый день одна задача】Каталез,

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