这是关于学习allegro教程帮你快速入门高级制版软件的设计，很强大的制图软件！-This is about learning allegro tutorial to help you quickly start advanced plate design software, very powerful mapping software!

Satellite Tool Kit(STK)由美国AGI开发的一款在航天工业领域中处于绝对领先地位的商品化分析软件。主要应用于卫星仿真，这里附上的是这个软件的PPT培训教程-Satellite Tool Kit(STK) is a commercialization analysis software development by the U.S. AGI Company which if in the absolute leadership in the field of aerospace