Scope This manual describes protection techniques for electricalpowersupply and distribution systems.
范围本手册介绍了电力供应和分配系统的保护技术。
2
Quality of electricalpowersupply does directly affects the accuracy of measurements and results of scientific research.
电能质量直接影响测量的精度，影响科研测试的结果。
3
A ferroelectrics could release total electric polarization energy during it is transformed to antiferroelectrics, and that was used to high electricalpowersupply.