To that end,the internal tours of the 3.15-acre structure -- which were started in late 1999 -- allow visitors to see not only the different ecosystems but also the living quarters,uniforms and other gear of the original Biospherians,as they are called.

 
  • 因此,始于1999年末期的达3.;15英亩的内部旅游不仅允许游客们观看不同的生态系统,而且他们还可以看到生活区、工作服以及第一批生活在生物圈2号中的人们所穿的各种服装。
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