但不管取什么名字,比起用锡罐建造宇宙飞船和空间站,用织物建造有几大好处。
The most important is weight. Inflatable space stations are lighter than metal ones, and evensmall savings in weight make a big difference to launch costs.
最关键的是重量。充气式空间站比金属材质的空间站更轻,即使是减轻一点重量也会大大降低发射成本。
Expandable modules may be safer, too.
膨胀式太空舱可能也更加安全。
Ground tests by Bigelow Aerospace, Mr Bigelow s vehicle for his orbital ambitions, suggestthat the module s wallsthick sandwiches of exotic fabrics such as Vectran and Nomexoffer better protection than metal ones against impacts from micrometeors and theincreasing amount of artificial debris that is in orbit around Earth.
毕格罗航天公司对毕格罗实现轨道飞行梦的工具进行了地面测试,结果表明:太空舱壁面的厚夹层是由独特的织物制成,如聚芳酯纤维和诺梅克斯。比起金属制造的壁面,织物壁面能提供更好的保护,免受微流星和越来越多绕地球轨道飞行的人造碎片的影响。
They are also less likely than metals to generate dangerous secondary radiation whenbombarded with things like cosmic rays.
在撞击如宇宙射线等东西时,比起金属材质的太空舱,膨胀式太空舱产生二次辐射的可能性更小。
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