四边

A kite is a quadrilateral with one line of symmetry.

风筝是有一条对称线的。

A prismatoid having polygons with the same number of sides as bases, and faces that are parallelograms or trapezoids.

相等的平行；不是直角的等平行。

Book letter putamina by quality requirements, the four sides then use bamboo scratch tight wrapping to prevent curling down and up empty.

书封壳在按量要求做好后，再用竹刮刮紧包，防止包不紧及起空。

In this chapter, we partially solve the problem of inner radius of univalence for some parallelogram, applying the properties of extremal sets of Schwarz derivatives.

在这一章中我们利用Schwarz 导数极值集的重要分的解决了几类平行的单叶内径。