installing device造句

the paper analyzes the wave figures before installing device and after it
分析装置安装前后的电压电流波形图、谐波含量及瞬流情况。
it has compared all kinds of advantages and disadvantages about navigation systems . then a primary plan was developed and demonstrated . in allusion to the lower cost and little solidity for vehicle installed devices, the dominant design project for this system was brought forward and has been done argumentation
本论文首先对国内外的车辆导航系统的研究和应用现状进行了介绍，比较了各种导航定位系统的优、缺点，并且针对车载台成本高、体积小、精度要求较高等特点，提出了本系统的总体方案设计并进行了方案论证。
It's difficult to find installing device in a sentence. 用installing device造句挺难的