求翻译：由于西藏地处世界屋脊，自然条件恶劣，也由于几百年落后的封建农奴制社会形成的各种社会历史条件的限制，西藏在全国还属于不发达地区。是什么意思？

Tibet is located in the roof of the world, poor natural conditions, and also because of the limitations of the social and historical conditions of the formation of several hundred years backward society of feudal serfdom in Tibet in the country belong to the underdeveloped regions.

Due to the Tibetans in the roof of the world, natural conditions, but also because of a few 100 years behind the feudal serfdom of various social and historical conditions in Tibet, also belong to the developed regions.

As a result of the Tibet attendance roof of the world, the natural condition is bad, also because several hundred year backward feudalism serf society forms each kind of social history condition limit, Tibet also belongs to not the developed area in the nation.

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正在翻译，请等待...