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1·The nonlinear stiffness of the insulating system and the best frequency ratio are put forth.

采用非线性刚度为主的隔振系统，确定了最佳频率比。

2·The spatial frequency ratio which could reflect regional similarity among images was defined.

②定义了能够反映图像之间区域相似程度的空间频率比概念。

3·The optimum parameters include the optimum frequency spacing, average damping ratio, and tuning frequency ratio.

最优参数包括最优频率间隔、最优平均阻尼比和最优调谐频率比。

4·The effect of antenna size on frequency is analysed, whi ch shows that the frequency ratio can be tuned from 1.67 to 2.67.

分析 了天线尺寸变化对工 作频率的影响，得出所设计的天线频率比在1.67～2.67范围内可调。

5·In 1960, American families ate out at restaurants much more often than Japanese and British families and the average frequency ratio was 1.

1960年，美国家庭每月在饭店就餐的平均次数要远远高于日本和英国家庭，三者的比例依次为每月次：1。

6·On constant frequency ratio, loading ratio has an importance influence on the initiation and propagation of fatigue crack under double frequency complex loading.

在频率比确定的条件下，载荷比是影响双频疲劳裂纹萌生及扩展的一个重要因素。

7·The effects of the angle of the tilted support, the frequency ratio and mass ratio of the system on the response of acceleration and displacement were discussed.

讨论了系统支承角、系统频率比以及系统质量比等对易损件加速度及位移响应的影响规律。

8·In 1960, American families ate out at restaurants much more often than Japanese and British families and the average frequency ratio was 1.2:0.2:0.4 times per month.

1960年，美国家庭每月在饭店就餐的平均次数要远远高于日本和英国家庭，三者的比例依次为每月次：1.2：0.2：0.4。

9·In 1960, American families ate out at restaurants much more often than Japanese and British families and the average frequency ratio was 1.2:0.2:0.4 times per month.

1960年，美国家庭每月在饭店就餐的均匀次数要远远高于日本和英国家庭，三者的比例依次为每月次：1.2：0.2：0.4。

10·Finally, a solution to restraining the harmonic current and ripple torque is suggested, ie a larger modulation frequency ratio of 3k is to be adopted, as it is used in SPWM.

文中还提出了抑制谐波电流和脉动转矩的方法，如在SPWM生成中，采用较大的3的整数倍调制比。