非达西渗流
参考答案：
流体在多孔介质中的流动不服从达西定律，流速与压力梯度偏离直线关系的其它渗流方式均称为非达西渗流。
In the context of corporate governance explain the role of the external company auditors, paying particular regard to the following issues:(a) their qualifications;(b) their powers;(c) their duties. (10 marks)
按推力轴承的支撑结构划分，当前推力轴承的型式主要有（）种。
A.1；
B.2；
C.3；
D.4;
