But there 's still some difficulty when it comes to the management of the complex space property rights under existing system and the problem need lucubrating .

但现行体制下对产权复杂的空间领域的管理仍然是难点，有待研究。

By lucubrating balance of the overall volume of water resources in shuangta irrigation area of hexi aisle , it supplies a sufficient basis for establishing scientific management mechanism and reasonable exploitation and utilization of water resources .

通过河西走廊双塔灌区水资源总量均衡的深入研究，提出了为建立科学的管理机制和合理开发利用水资源的建议。