planar chip

例句：

1. 1.The floor is planar and smooth.
   地板是平展光滑的。
2. 2. The table is planar and can be easily moved.
   桌子是平展的，可以轻易移动。
3. 3.The roof of the house is planar and has a beautiful design.
   房子的屋顶是平展的，设计很漂亮。