石像是由单个长方形块状材料制成的，并保持原有形状的坚实度。

Stone statues were worked from single rectangular blocks of material and retained the compactness of the original shape.

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但是时至今日，在涉及可译度方面却没有形成一套系统的行之有效的理论。

So far, no effective and systematic theory concerns the DT (degree of translatability), except a few of them scratched the surface of it.

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在质心系中，解决两体问题，具有形式对称，描述简洁，精确度高等优点。

In center of mass system, solved problem of two body had merits of symmetry form, brief description and high precision.

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