Because of inadequate preparation for the theory and lack of the thorough study, Problems exist both in theory and in practice.
由于理论准备不足，研究不够深入，在理论和实践上都存在一些问题。
The couples asked not to be named since both are currently going through the waiver process by admitting to alcohol problems they do not believe exist.
他们请求不要署名，因为，在他们承认了自己并不认为存在的酗酒问题后，他们当下得以经过豁免程序。
Great challenges and barriers exist in both theory and practice due to the NP-hard of layout problems in computation complexity and alarming difficulties in the design of spacecraft themselves.
布局问题的NP -困难性和航天器设计本身的巨大复杂性使得该问题的解决既有理论上的开拓性和挑战性，又存在工程实践上的艰难性和复杂性。
Both success and problems exist in the solar energy utilization in China.
阐述了我国太阳能开发利用的成功之处，及存在的诸多问题和不足。
Shopping guidance is one of the major problems in touring industry and both the touring agencies and tourists agree that there exist misbehaviors in a tourist guides shopping guidance.
“引导购物”现象是导游业中意见比较集中的方面，旅行社与游客均认为目前导游购物引导中普遍存在不规范行为，这一问题应该通过合理的薪酬机制解决。
The problems that exist during machining screw with lathe both abroad and at home are presented, the method for judging and machining screw are introduced.
阐述了国内外螺旋类零件的螺纹在车床上加工时存在的问题，并介绍了正确的判断方法及加工方法。
Both the evaluation systems are reasonable, However, there exist some problems in them at the same time.
两种评价制度都有其合理成分，同时又存在问题。
At present, there exist some problems on both knowledge and operation in merging the enterprises of our country.
当前，我国的企业兼并无论是在认识上，还是在具体操作上，都还存在一些问题。
At present, there exist some problems on both knowledge and operation in merging the enterprises of our country.
当前，我国的企业兼并无论是在认识上，还是在具体操作上，都还存在一些问题。
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