Further more, as the application of CRM is a complicated system, it is difficult to operate and to evaluate the effect. These questions need to be further studied and discussed in practice.
另外，CRM的实施本身是一个庞大复杂的系统工程，实施起来有一定的难度，评价其效果也比较困难，这些问题都仍有待在实践中进一步地研究与探讨。
On the other hand, this mechanism need to be further discussed from aspects of theoretical support and systematic guarantee because of lack of explicit legal warranty.
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。
These questions need to be further discussed.
这些问题还有待进一步研究。
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