( sash windows)
A sash window is a window which consists of two frames placed one above the other. The window can be opened by sliding one frame over the other.
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( sash windows)
A sash window is a window which consists of two frames placed one above the other. The window can be opened by sliding one frame over the other.
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Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006