对GPS初学者来说，可以直观的查看GPS卫星分布以及进行模拟结算用户位置-Pairs of GPS for beginners, this may be an intuitive view to simulate GPS satellite distribution and settlement of user location

matlab下的危化品泄露扩散模拟软件，能够模拟危化品泄露后的毒害区域。-hazards area simulate on matelab.

高强钢冷弯成型产品形状在线修正的研究。提出板材V型弯曲成型在线修正系统, 通过一个闭环反馈控制对成型角度偏差自动修正。-Research on Online Correction for Forming Error of Roll Forming. Based on the current research achievements of roll forming and the understanding of material properties, an online springback