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YuErjian_power-system
- 《电力系统状态估计》于尔铿 电科院于尔铿老师的《电力系统状态估计》一书是电力系统状态估计的经典著作，但因为是专业书籍，年代也比较早，一般的书店很难有卖- --" Power System State Estimation" in Erkeng EPRI in Erkeng teacher' s " power system state estimation," a book is a classic power system state est
Ticket-ordering-system
- 订机票系统 （12坐飞机） A查找未被购买的机票 B查找机票购买编号 C买票 D卖票 -Book a ticket system (12 aircraft) A Find not purchased tickets B Find tickets purchase number C Buy tickets D to sell tickets