For unadjustable ones, the exit may be the best choice.This paper also studied the relevant barrier, ways and policies.The last part can be viewed as a case discussion.

而不可调整升级型衰产业本文则做出了出的建议，并出的障碍、出的方式及顺利出的政策保障进行了论述。

The invention aims to solve problems in the prior compensation pulse generator, such as complicated electrical excitation structure and unadjustable permanent magnet excitation output.

目的是解决现有补偿脉机励磁结构复杂、永磁励磁输出不能调节问题。