A extended outer surface of an object.

物体外在的延伸的面。

This forces carbon into the outer surface of the steel.

强制使碳元素进入钢材的表面。

Coating on the outer surface as indicated on the drawing.

如图所示，在外表面涂层。

From the outer surface of the glass fiber is woven from silk.

外表层是由玻璃纤维丝编织而成。

Using this algorithm, the smooth outer surface can be obtained.

利用该算法可以获得光滑的外表面。