截止

A novel design method is put forward and the cutoff filters with depolarization at incidence angle of 45° are achieved.

由于这种设计的截止区和透射带带宽常嫌不足，故提出了展宽截止区和透射带的方法。

Furthermore, we separate the contribution from the leakage and cutoff effect to the attenuation constant, and then deduce an expression to determine the leakage in the reactive region.

根据该准则我们还进一步分离出泄漏效应和截止效应各自对衰减常数的贡献，并推导出在截止区内表征辐射能力大小的表达式。

The cutoff frequency of heteromophic waveguide in special structure is solved with the matching of electric and magnetic field on the invented boundary by vector partial differen-tial operator theory.

该文用矢量偏微分算子理论通过虚拟边界的电场和磁场的匹配求解特殊结构的异形波导的截止频率，这一方法可以精确而方便地求出几乎所有模式的截止频率。

Currently, domestic production has successfully developed a PWR Island Grade Ⅰ electric valve, check valve; Nuclear Grade Ⅰ electric bellows globe valve, fast breeder reactor using nuclear electric bellows Ⅱ grade cut-off valves with sodium high level of nuclear valves.

目前，国内已成功研制生产了压水堆核岛核Ⅰ级电动闸阀、止回阀；核Ⅰ级电动波纹管截止阀、快中子增殖反应堆用核Ⅱ级电动波纹管钠截止阀等具有较高水平的核级阀门。

If the application is made on or before the relevant cut-off date of an annual registration cycle, it will be

如申请是在某年度登记周期的有关截止日期当日或之前提出的，则会在该截止日期后，在切实可

If the application is m ade on or before the relevant cut-off date of an annual registration cycle, it will

如申请是在某登记周期的有关截止日期当日或之前提出的，则会在该截止日期后，在实

Cycle. If the application is made after the relevant cut-off date of an annual registration cycle, it will be

某年度登记周期的有关截止日期后提出的，则会在下一个年度登记周期的有关截止日期后，在切

History of southwest China, the worst drought in full swing, and the Yangtze River upper reaches of the dry, drought in the west with the jambo and Hunan, Shanghai, Chongqing, the price of ri...

标签： 气动管路截止阀，气动摘要：气动管路截止阀的结构及优点：气动管路截止阀根据阀瓣的这种移动形式，。。。

And, the α parameters of frequency chirping of the cutoff intensity modulator are given at first. The cutoff conditions of metal-clad strip or rib waveguides are analyzed by modifying dual effective index method and simple effective index method, respectively.

在理论上，详细论述了截止型强度调制器的工作机理，结合耦合模理论，用近似方法对截止型强度调制器的调制特性进行理论模拟，模拟结果与实验结果的变化规律基本相符合；并首次给出截止型单波导强度调制器频率啁啾α因子的模拟结果。

Using finite-element method the effects of long objects, such as cage, train and metal pit prop, on electromagnetic wave cutoff frequency is researched systematically in regular tunnels, and it is shown that the long metal objects lower TE wave cutoff frequency and raise TM wave cutoff frequency.

利用有限元方法系统地研究了机车、罐笼、金属支护立柱等长列金属物体对井下规则隧道中电磁波截止频率的影响，可知长列金属物体的存在使TE波模截止频率降低，而使TM波模截止频率升高。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。