公司法完善
Perfection of the company law
立法完善
Legislation perfection
legilative perfection
legislative improvement
legislation
Legislation improvement
Legislation perfect
legislative perfection
optimization in legislation
perfection of the legislation
legislative perfect
legislation completeness
完善法制
perfection of legal system
泵送法完井作业
pump-down completion operatopn
不完善交叉耦合
imperfection cross coupling