So this paper proceeds with the introducing of com's basic concept, end with realizing two dimension electron map display components and doing perfect self-consistent in establishing ComGIS.

因此本文从论述COM的基本概念入手，以实现二维显示组件结束，对组件这一组件式地理信息系统的基石做了充分的论述。

youdao

The peripheral utilizes three small drop down displays -- the rear is a full mirror with two half mirrors in front it, reflecting images from the phone display into what appears to be a three-dimension object -- and really, it a stunning little effect.

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