请各位高手帮忙翻译下？ i试试 inside the reactor, measurements will be taken from the bottom tangent weld line. manufacturer’s vessel measurements are generally shown from tangent lines. this weld line is often slightly above the actual vessel tangent line and so a small adjustment can be made to accommodate this. mark the various levels with chalk line on the reactor wall. once these measurements have been done it is then necessary to check the distance of these lines from the flange of the top manway. this is so progress of bed loading can be checked on a number of occasions during dense loading of the catalyst without the need for a man to enter the reactor each time. during loading the catalyst bed height will be checked using a plumb line dropped into the reactor and is cross‑checked against the known weight of catalyst loaded. 反应器内部，距离测量要从底部切线焊接线开始。 厂家的容器测量值一般是从切线开始的。焊接线一般要稍稍高于实际容器切线，所以我们可以稍稍调整一下测量位置。 用粉笔在反映其内壁标记不同水平位置。 测量结束后，必须检查这些标记与顶部人孔法兰的距离。这样的话，密度装填的一些阶段，检查床层装填就不需要每次都要人进入反应器内部。 在装填催化剂时，可以用铅垂线伸入反应器来测量床高，之后用已装填的催化剂重量来核对查看更多
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