In case of excessive leakage it was decided to implement gutters under every frame to reduce the risk of damage and make maintenance easier.
为了防止水过多泄露，他们将在每一个窗框下面安置排水槽来减少立面的破坏，并且能够使得维护更加容易。
This paper also about the choice of material, the design of frame, and the problems should be noticed in maintenance, repair, type exchange and sale.
以绿色设计作为基本出发点探讨材料的选择、结构的设计等，以及维护、修理、换型、销售各环节中应注意的问题。
Outer frame of galvanized, painted or stainless steel. Blades of galvanized or stainless steel with double sheet construction, silicon sealings. Maintenance-free stainless steel bearings and shafts.
外部框架为镀锌，涂漆或不锈钢。镀锌或不锈钢的风叶带双层结构。免维护的不锈钢轴套和转轴。
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