The research results showed that the theory and engineering implementation of passive location by single reconnaissance satellite were need more investigation.

研究表明，对单星无源定位的理论和工程实现，尚需作进一步的研究。

youdao

In this paper, a basket handle tied arch bridge engineering background research for the adjustment of cable tension in the bridge matrix of professional software implementation.

本文以一座提篮式系杆拱桥为工程背景研究索力调整中影响矩阵在桥梁专业软件中的实现方法。

youdao