求翻译：　　雨水斗安装在混凝土屋面预留好的洞位置，横向位置在天沟中央，横向偏移误差≤10毫米，纵向位置按照定位图定位，纵向偏移≤10毫米。钢天沟雨水斗安装，钢天沟上开洞为280+5mm的方形，氩弧焊接。是什么意思？

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Geberit is installed in concrete roof reserved good location, lateral position of the hole in the center of the groove Lateral Offset Error ≤10 mm, in accordance with the position it longitudinal position positioning, longitudinal offset ≤10 mm. Steel Groove Geberit, steel groove on the opening of t

The rain sink installs the hole position which reserves in the concrete roofing, lateral attitude in drain gutter central committee, crosswise offset error ≤10 millimeter, longitudinal position according to location map localization, longitudinal displacement ≤10 millimeter.The steel drain gutter ra

Water bucket installed in a hole in the concrete roof reserve position, horizontal position in the middle of the gutter, lateral offset error of ≤ 10 mm, longitudinal positioning under the location map, longitudinal ≤ 10 mm offset. Steel rain gutter install and open holes in the gutters for the 280+

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