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- For a system with a fundamental natural period in the long-period range, maximum displacement governs the seismic design. 对于长周期结构，地震最大位移反应是结构抗震设计的控制因素。
- S(subscript RDR) was not strongly dependent on soil types, natural period and ductility factors.Bilinear factor is the most significant parameter controlling S(subscript RDR). 场地类型、结构周期和位移延性对残余位移比的影响不大，双线性因子对残余位移比的影响很大；
- "He's going through that natural period where people want to nitpick the very few negatives he may have instead of extolling all his positives," Rockets coach Jeff Van Gundy says. 也许姚明的一部分问题在于联盟中的其他年轻球星，如詹姆斯、韦德和斯塔德迈尔等都很快融入了联盟，进步也非常神速，而姚明的进步却显出不足。
- The experiment's results indicate that FPS is an effective isolated device which can length the natural period and reduce the earthquake effect on upper struct... 试验结果分析表明:FPS摩擦摆隔震装置能够有效地延长上部建筑物的自振周期,减少地震作用对上部结构的影响,隔震效果明显,不失为一种有效的隔震装置。
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- The stage of natrue worshipping can be divided into two sub-stages-deifying nature period and worshipping nature period;and the stage of being on equal harmonious terms with the nature... 挖掘、分析古代的生态伦理观 ,可以为确立当代人类的生态伦理观提供借鉴。
- The Natural Period of Motions of FPSO in Shallow Water 浅水浮式生产储油轮运动固有周期特性
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- However, the results of this experiment, expected by summer 2007, could show how nature periodically sticks her oar in. 但是，本次试验的结果（试验结果预计到2007年夏得出）可以告诉我们自然界如何对此进行周期性地操控；
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
- Events took their natural course. 事态依自然进程发展。
- She has a natural wave in her hair. 她的头发自然卷曲。
- Magnetism is a natural phenomenon. 磁力是一种自然现象。
- It is difficult to be natural when one is tense. 人在紧张的时候很难泰然自若。
- The egoism of an artist sometimes seem natural. 艺术家的自负有时看起来是自然的。
- They used only natural pigments to dye the wool. 他们只用天然颜料染毛织品。
- Children are natural exhibitionists. 儿童天生喜欢自我表现。
- Everything we used was made from natural materials. 我们所用的一切都是由天然材料做成的。
- It's quite natural that you should succeed. 你的成功是很自然的事情。
