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n. 地板，（楼房）的层3 次
“Glazing on windows, doors and roof lights must cover no more than 25% of the floor area to prevent heat loss,” he says.
“为防止热量流失，窗户、门和天窗上的玻璃面积不得超过地面面积的25%，”他说。
Completed in 1875, the State Department’s south wing was the first to be occupied, with its elegant four-story library (completed in 1876), Diplomatic Reception Room, and Secretary’s office decorated with carved wood, oriental rugs, and stenciled wall patterns. The Navy Department moved into the east wing in 1879, where elaborate wall and ceiling stenciling and marquetry floors decorated the office of the Secretary.
国务院所在的南翼于1875年竣工，最先投入使用，其中有优雅的四层图书馆（1876年完工）、外交接待室以及用木雕、东方地毯和模板印花墙饰装饰的国务卿办公室。海军部于1879年迁入东翼，那里的部长办公室装饰着精美的墙面与天花板模板印花以及镶嵌地板。
Long is Britain’s best-known Land Artist and his Stone Circle, a perfect ring of purplish rocks from Portishead beach laid out on the gallery floor, represents the elegant, rarefied side of the form.
朗是英国最著名的大地艺术家，他的《石圈》——用波蒂斯黑德海滩上的紫色岩石在画廊地板上摆成的一个完美圆环——代表了这种艺术形式优雅、高雅的一面。