A historical and cultural city is a long - time accumulation of history and culture. First it expresses its cultural connotation in the form of space material.
历史文化名城是历史文化的长期积淀，它首先以物质空间形态向人们表达其文化内涵。
We analyzed them and they seem to be pieces of outer space material.
我们对它们（指碎片）进行了分析，它们似乎是外太空物质的残片。
With the increasing demand for further space resources, people pay more attention to the space inflatable deployment techniques, in which space material technique is one key problem.
随着对空间资源需求的日益增长，空间充气展开技术越来越受到人们的重视，而材料技术是其关键问题之一。
With the increasing demand for further space resources, people pay more attention to the space inflatable deployment techniques, in which space material technique is one key problem.
随着对空间资源需求的日益增长，空间充气展开技术越来越受到人们的重视，而材料技术是其关键问题之一。
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