Many load in distribution network has low power factor, fluctuates greatly, and changes fleetly. It is hard to achieve perfect compensation by traditional compensator.

配电网中许多负荷功率因数低、波动大、变化快，传统的无功功率补偿装置很难起到理想的补偿效果。

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The author considers that it is necessary to carry on the thorough discussion of this issue, and hopes to strengthen and perfect the damage compensation institution of our country by this.

笔者认为有必要对这一问题进行深入探讨，并希望以此对加强和完善我国的损害赔偿制度有所裨益。

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The programs for monitoring and displaying are designed using WINCC. The methods for improving efficiency and precision by error compensation and perfect software design are adopted.

采用WINCC设计测长监控与显示程序，并利用误差补偿技术及完善的软件设计方法，保证了测长系统的高效准确。

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