The capacitance of a metal ball and an infinitely big conductor plane system is sought out by the method of electrical images.

用镜象法求解金属球与无限大导体平板系统的电容。

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Nowadays, the analysis on internal force of structure is based on the hypothesis of plane system, but it can not solve the problem of stereoscopy.

现阶段在工程结构内力分析中，主要是基于平面体系的假设，并不能完全解决结构的空间性问题。

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According to the essence of Pilot Induced Oscillation (PIO) and the theory of Closed-loop control, the mathematical model of Pilot-Plane system is set up.

本文根据驾驶员诱发振荡的实质，从闭环控制理论出发，提出了人-机系统数学模型，并在时域内进行了计算。

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The plane that's ready to take off or is taking off is not such a system.

但即将起飞或正在起飞的飞机并不是这种系统

耶鲁公开课 - 基础物理课程节选

AbdulMutallab should not have been able to get high explosives on a plane, the watch list system should have prevented him from boarding the plane at all, and the U.S. intelligence community writ large should have been able to collect, analyze and disseminate critical intelligence.

CNN: No one connected the dots on terror plot

The plane's electrical system may have been a factor.

CNN: FAA releases ValuJet air traffic control tapes

But other companies, such as units of United Technologies and other vendors, contribute to the plane's extensive electrical system.

CNN: Quick fix for Dreamliner looks less likely, experts say