Based on the difference expansion and difference shifting, a novel reversible watermarking algorithm for digital vector map is proposed.

利用差分平移和差分扩张，提出一种新的应用于数字矢量地图的可逆水印算法。

youdao

Secondary development of map sheet decoration which is based on the Geographic Information System (GIS) platform is not conducive to the migration and expansion of functions.

基于地理信息系统(GIS)平台二次开发的地图图幅整饰不利于移植及功能扩展。

youdao

In calculating on the basis of the results painted a screw expansion of the expansion process of pressure, temperature changes in relations with the corner of the map and a detailed analysis.

在计算结果的基础上描绘了螺杆膨胀机膨胀过程内工质压力、温度随转角的变化关系图，并进行了详细的分析。

youdao

The government is massively upgrading the public transportation network (see a map of the planned subway expansion) as part of this expansion of Greater Beijing.

FORBES: Is Jim Chanos Right About A China Real Estate Bubble?

This is a recent expansion of the work started in 2007 to build the most detailed map of human genetic variation available.

FORBES: Bringing the Human Genome Into the Doctor's Office