On the other hand, this mechanism need to be further discussed from aspects of theoretical support and systematic guarantee because of lack of explicit legalwarranty.
另一方面，该机制在法律上由于缺乏明确依据，在理论支撑和制度保障等方面尚需进一步探讨。
2
This prescription has set up legalwarranty for China's exploitation of underground space in the form of the system of layered establishment, which has a practical significance.