The photographer used the natural cave-like windows in the rock formations to frame his images like this one of a winter sunset.
这位摄影师利用岩层上状如洞穴的自然窗户将他要拍摄的风光框住。像这张冬日日落便是如此。
It has excellent air tightness, water tightness, heat insulation, winter proofing and sound insulting property as the frame adopts the inside high and outside low design.
门框采用里高外低设计，气密性、水密性、隔热、防寒、隔音性能优越。
It has excellent air tightness, water tightness, heat insulation, winter proofing and sound insulting property as the frame adopts the inside high and outside low design.
门框采用里高外低设计，气密性、水密性、隔热、防寒、隔音性能优越。
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