主周期 meaning in English
dominant period
primary period
Examples
- The precipitation and temperature both existed 5year periodic variation in the pre - flood period in the south of china
华南前汛期降水和气温都有5a的主周期。 - As a result the use of semiactive dampers in structures is positively only in some special cases when compared to passive systems
只有在结构周期与激励主周期的输入比值满足一定条件的情况下，粘性变阻尼控制才有意义。 - ( 2 ) summer rainfall of north china exists periodic variation of quasi - three years and six years , and . spring , autumn and winter also exist periodic variation of quasi - three years
( 2 )华北地区夏季存在3年左右的主周期及6年左右的次周期，春、秋、冬三季都存在3年左右的主周期。 - In other words , the effectiveness of viscous variable dampers on reducing the response of structures depends on not the period of the structure , i . e . the rigid structure or the flexible structure , but the ratio of the disturbance period to the structure
也就是说，变阻尼控制效果的好坏并非仅仅取决于结构的周期（柔性结构或刚性结构） ，而主要取决于结构周期与激励主周期的比值。 - On the basis of theoretic analysis and numeric calculation , the author verifies that only is the ratio of the fundamental period of the structure to the disturbance period beyond 1 . 4 , it ' s possible to achieve reductions in both the relative displacement and the absolute acceleration responses
作者在此基础上，从理论分析和数值计算两方面证明了粘性变阻尼控制仅在结构周期与激励主周期的比值大于1 4时才有可能同时减小结构的位移反应峰值和加速度反应峰值。