求翻译：温室Foundation采用钢筋混凝土预制件，高出地面200mm，全部为点式基础，基础采用大小为180×180×500mm的预制钢筋混凝土构件，施工时，构件四周用400×400×500mm的C20混凝土浇灌固定。是什么意思？

Greenhouse Foundation precast reinforced concrete, above ground 200mm, all to-point basis, the basis of the use of size 180 × 180 × 500mm pre-cast reinforced concrete structures, construction, components surrounded by a 400 × 400 × 500mm of C20 concrete pour fixed .

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Greenhouse Foundation uses the reinforced concrete pre-workpiece, outdoes ground 200mm, when completely for the type foundation, the foundation uses the size for 180×180×500mm the prefabrication reinforced concrete component, the construction, the component all around uses 400×400×500mm the C20 conc

Greenhouse Foundation with precast reinforced concrete, up from the ground 200mm, all of which dot Foundation, base size for 180x180x500mm of precast reinforced concrete members, the construction of the widget 400x400x500mm C20 concrete casting fixed four weeks.

Greenhouse Foundation adopts the armored concrete to prefabricate one, higher than ground 200mm, all some type foundations, the foundation adopts the structural component of armored concrete of prefabrication with size of 180*180*500mm, while constructing, water around the structural component fixed