The favourable ranges of the principal vane parameters, affecting the cyclone tube performance, were founded by comparative tests.
通过对比试验，找到了影响旋风子性能的几个主要叶片参数的适宜范围。
By the comparative tests with the mean filter and the median filter, the AWMF performs best features in the reduction of noise and keeping edge information of images.
通过与均值滤波、中值滤波的对比实验，自适应权重中值滤波器表现出良好的滤波特性，而且它在抑制噪声的同时，较大限度地保持住图象的边沿特征。
By tests and questionaire, the authors make a comparative analysis on the cognitive attitude to the physical strength and physical health among the college students in China and Japan.
采用测试与问卷调查相结合的方法，对中国与日本大学生的体力及体力健康认知态度等现状，进行对比分析。
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