He conceived the first proof that the 17-sided polygon is constructible.

他构思了17边形可以作图的第一个证明。

He conceived the first proof that the 17 - sided polygon is constructible.

他构思了17边形可以作图的第一个证明。

A type playing the role of copy-constructible-type in the CopyConstructible concept.

在可复制构造概念中担任可复制构造类型角色的类型。

Copy constructible types must be able to be constructed from another member of the type.

可复制构造的类型必须能够从该类型的另一个对像进行构造。

If neither the second nor third option above is a valid option, t must be copy constructible and assignable.

如果上面第二和第三个选项都是有效选项，T必须是可构造和可赋值的副本。