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- long period ground motion 长周期地震动
- The digital accelerograms from the 1999 Chi-Chi, Taiwan, earthquake, with a Richter magnitude 7.3 (Mw 7.6), provided valuable research potentials for the studies on the long period properties of near-fault strong ground motions. 1999年台湾集集地震(M_W=7.;6)中得到的台站地震动数据记录为研究近场地震动提供了丰富的资料，改善了1999年之前此类资料不足的情况。
- Trifunac M D. Pseudo Relative Velocity Spectra of Earthquake Ground Motion at Long Period, Soil Dynam. Earthq. Engng., 1995, 14, 331-346 霍俊荣.;近场强地面运动衰减规律的研究
- He was on his feet again after such a long period in hospital. 住院很长一段时间他复原了。
- After a long period of rain the river may overflow its banks. 在一个长时间的降雨之后，河水会漫过河岸。
- The Richter Scale is a measure of ground motion. 里氏震级是测量地动的单位。
- The ground state of hydrogen is stable for an indefinitely long period of time. 基态氢可以在无限长的时期内处于稳定状态。
- There is a long period when we have no news of him. 有很长一段时间我们没有得到他的消息。
- Some waste rots away over a long period of time. 有些食物要经过好长时间才会腐烂。
- Fifteen years is a long period of her life . 五十年是她一生中很长的一段。
- Long period hard work pulled him down a lot. 长期的艰苦劳动使他的身体虚弱了许多。
- China had a very long period of feudalism. 中国有很长的封建时期。
- In pure seismology, the ground motion is generally expressed by its amplitude. 在纯粹地震学中，地面运动一般以振幅表示。
- To take back and eat for a long period of time. 带回去慢慢吃。
- See if you can persist over a long period. 看看你能坚持多长时间。
- Aeon: An indefinitely long period of time; an age. 极长的时期;永世。
- The reflections are recorded by detecting instruments responsive to ground motion. 反射波由对地面振动极敏感的探测仪器记录下来。
- What do you find over a long period of time? 长时间过后,您有什么发现吗?
- Fifteen years is a long period of her life. 五十年是她一生中很长的一段。
- Ground motion composite inversion based on a substructural analysis method is studied in this paper. 本文研究一类基于子结构分析的地震动复合反演问题。
