该文对于衰减性旋流强化传热性能进行了试验研究。
The heat transfer enhancement characteristics with decaying swirl flow is investigated experimentally in this paper.
旋流的形式主要有衰减性旋流和非衰减性旋流两种。
The type of swirl-flow mainly includes decaying swirl flow and non-decaying swirl flow.
在此平衡点附近建立中心流形定理，并证明中心流形有空间指数衰减性。
We give a center manifold theorem in the neighbourhood of the equilibrium point, and prove that the center manifold is exponentially decaying.
本文利用能量扰动法得到具边界记忆项波动方程初边值问题解的指数衰减性。
The exponent decay of solution of wave equation with boundary memory is obtained by the energy method.
具有强衰减性，衰减系数与频率、孔隙度和渗透系数间存在敏感的增函数关系；
There is a heavy attenuation property and there exist sensitive relationships of increase function between attenuation constant and frequency, porosity, osmotic coefficient;
利用能量法证明了具耗散边界条件和时间依赖系数的非线性波方程的能量指数衰减性。
By using the perturbed-energy method, the exponential decay of the solution is obtained for the nonlinear wave equations with time-dependent coefficients and dissipative boundary condition.
城市各用地类型中，道路广场用地和绿地为增长性结构，工业用地仓储用地为主要衰减性结构；
Each land use types , road square land and green land showed a significant supply effect, industrial land and storage land had a structure of damping form;
从多分辨分析（MAR）出发，介绍了正交样条小波函数的构造方法，并讨论了小波函数的衰减性。
Starting with the multiresolution analysis (MAR), a method to constructing orthogonal spline wavelets is introduced and the exponential decay of them is discussed in this paper.
研究结果表明：时间和温度决定了水分迁移的充分性，温度的变化随深度的增加而具有衰减性，并且在冻结峰面附近形成一个冻结含水量峰值；
The results indicate that a peak of frozen moisture content is formed in frozen peak surface, which is developed for depth change with time increased.
研究结果表明：时间和温度决定了水分迁移的充分性，温度的变化随深度的增加而具有衰减性，并且在冻结峰面附近形成一个冻结含水量峰值；
The results indicate that a peak of frozen moisture content is formed in frozen peak surface, which is developed for depth change with time increased.
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