De karakteristik prensipal yo nan sèr Multi span fim yo se estrikti senp ak fòm fleksib . Yon senp milti manbràn ki fèt yo ki fèt yo retire kèk nan estrikti yo nan yon milti manbràn ak se sitou apwopriye pou fèy rezen yo, kilt yo, elatistik {{{} Estrikti fondasyon nan sèr milti fim span yo ta dwe regilyèman konsève {{3}
De pi gwo avantaj ki genyen nan sèr milti fim span yo se: (1) estrikti senp: akòz karakteristik sa yo nan materyèl la ki kouvri, estrikti a chaj-pote, sistèm fixing fim, ak kondisyon enstalasyon nan sèr plastik yo relativman senp {{2} estrikti okou-l ap itilize HOT-DIGETSELYE STRYCHENSE NAN STRYCHINE ONSYÈL ONSYÈL ONSYÈL ONSYÈL ONDYEN, is better in assembly structure. The main steel frame of the greenhouse is mainly composed of columns, perimeter beams, top arch bars, top tie rods, crossbeams, loose supports, gutters, etc. The use of top longitudinal bars as tie rods greatly simplifies the structure and reduces steel consumption. At the same time, when Se gaz la kouvri ak materyèl ak do kay la pa mekanikman konekte, do kay la sèlman pote charj gravite ak presyon van pozitif, epi li se presyon van an transmèt nan bon marse la ak kolòn, anpil optimize estrès la nan estrikti a lakòz efè tèmik {{10} such as regional and customer demands. Countries around the world have launched production and promotion based on plastic greenhouses. Their respective standards have resulted in a large number of different forms and specifications of plastic film multi span greenhouses, such as high arched greenhouses with different spans, double arched greenhouses, serrated greenhouses, small arched multi span greenhouses, elatriye . Se poutèt sa, li toujou difisil a rezime ak dekri dimansyon yo nan sèr plastik endividyèl {{16}
