Thus, a series of cycloids are obtain. ed, which include almost a package of cycloids known so far, and therefore, it has the theoretical and practical value.
我们获得一种系列型线，几乎能包括所有已知型线，具有理论和实际价值。
Thus, a series of cycloids are obtain. ed, which include almost a package of cycloids known so far, and therefore, it has the theoretical and practical value.
我们获得一种系列型线，几乎能包括所有已知型线，具有理论和实际价值。
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