concave aspheric surface
常见例句
- The aspheric surface of the plate with 4~(th) order term is concave, and it can be made spherical by grinding it with hinge support around and equa.
平板上的4次方非球面是凹面性质，它的制造，在周边铰支而外加均布载荷时可以加工为球面，释放均布载荷后该面即弹回成所要的4次非球面。 返回 concave aspheric surface