而长周期结构采用规范设计反应谱或由地震危险性分析给出的场地设计反应谱计算所得的地震反应结果偏大。
The seismic response of the structure with long period will be over estimated, if the standard spectrum or the design spectrum given by seismic risk analysis is applied.
研究结果表明：在简谐地面加速度作用下，高频地震动也可以引起长周期结构产生很大的位移反应，且最大位移反应出现在结构的瞬态自由振动阶段。
It is concluded that the transient response to a high frequency harmonic ground motion can increase greatly the displacement response of structures, particularly for the long period structures.
传统的设计方法存在设计周期长、结构冗余、成本高、缺乏对结果的验证等诸多弊端。
There are many problems in traditional design method such as long period, structure redundancy, high cost and lack of validation etc.
SF 6全封闭组合电器是一种具有可靠性高，检修周期长，结构紧凑等先进技术的综合输配电装置。
SF6 totally enclosed combined electrical apparatus is an advanced comprehensive power transmission and distribution device with high reliability, long check period and well-knit structure.
双半内圈四点接触球轴承结构复杂、设计周期长、加工难度大。
Single row angular contact ball bearing with two piece inner ring has complex construction, long design cycle, great difficulty in processing.
这一特征长周期为嵌段共聚物材料用作光波导等光学器件提供了结构基础。
The long-range lamellar morphology can offer block copolymers as a structural basis for optical waveguides and related devices.
耳朵外形结构精细复杂，手术再造耳不能完全显示出耳朵的精细结构，且存在手术危险、费用高昂、周期长的缺点。
The ear by surgery can not show the fine structure of one normal ear, and surgery is dangerous and extortionate and its period is long.
弹性波在无限长直线型失谐周期结构中传播时，会出现弹性波局部化现象。
As elastic waves propagate through disordered infinite linear periodic structures, localization phenomenon of elastic waves will appear.
然而林分是一个结构复杂、影响因子多且相互关联的生态系统，其生长周期长，且对所实施的管理决策的容错性差，这些特点给合理的经营决策增大了难度。
But the stand is a ecosystem with complicated structure and many related influence factors. Add to the long growth period long, it is difficult to carry out the proper management policy.
其特点是周期长，灵敏度高，多量程，稳定性好，结构紧凑，体积小。
They are characterized by longer period, higher sensitivity, multiple recording range, good stability, compact and small size.
具有结构紧凑、功率大、重量轻、油耗低、可靠性高、冷启动性能好、通用性强、排放低等特点，还具有保养周期长、使用成本低等特点。
With a compact, power, light weight, low fuel consumption, high reliability and cold start performance, versatility, low emissions, but also has maintained a long cycle, the use of low cost.
在时效的前期阶段观察到两种长周期调制结构。
Two modulated structures are found in presaging time, which are ordered intermetallic phase.
多工位级进模精度要求高，结构复杂，传统的串行开发存在着制造难度大、生产周期长的缺点。
Because of the high precession and complicated construction requirements, the multi-stationed progressive die is hard to process with the traditional serial development besides a long production term.
多工位级进模精度要求高，结构复杂，传统的串行开发存在着制造难度大、生产周期长的缺点。
Because of the high precession and complicated construction requirements, the multi-stationed progressive die is hard to process with the traditional serial development besides a long production term.
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