Because of various reasons, this new work develops slowly in our country, and there are many problems existed in the practice.
但由于多方面的原因，这项新工作在我国发展缓慢，实践中还存在很多问题。
Result indicates that there are many problems existed in management system and anaerobic digestion technique etc of municipal refuse.
结果表明，在城市垃圾的管理体制和厌氧消化技术等方面都存在很多问题。
Many problems existed in our country's present abstract administrative actions, such as department's interests legalizing, repeated legislation, legislation beyond one's power.
我国目前的抽象行政行为存在部门利益法制化、重复立法、越权立法等问题，这主要是由于现行抽象行政行为监督机制不健全造成的。
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