The nature of these disputes can range from the collection of management or maintenance fees to disputes over water seepage and interpretation of the deed of mutual covenant 这些纠纷涉及不同的性质，由徵收管理费或维修费，到处理渗水问题以至对公契的诠释等。
The developing countries have their own tax policy which could prevent their tax system from weakening their own source of tax . in addition , we have to make a fair balance between the fairness of distributing the tax burden and the promotion of electronic commerce 发展中国家如果要有自己的方针政策，防止来源地税收管辖权的弱化，首先又要解决如何对互联网提供者提供的服务和在网上购销的商品及服务证税这一技术难题。
A transparent model is used to make the deflection jet board grounded on the inhere enlarged dimensions . the finished experiments are conducted to catch the flow rate directions and the situation of cavitation using a high - speed video cameras . in this paper , the finite element analysis and visualiation research of servo valve prestage jet flow field are carried out , which establish the theoretical foundation for mathematical model of servo valve prestage and the whole mathematical model of hydraulic servo valve 在对射流前置级驱动的伺服阀射流流场数值模拟的基础上,用有机玻璃在偏导射流板原始尺寸的基础上进行了扩大,制作了透明的偏导射流板,运用高速摄像机、液压泵站等组成了可视化实验系统,对射流流场的流速方向、涡流、气穴等现象进行了多方位的观测,并通过对接收管接收压力的测试,对流场分析结果进行了验证。
