水力压裂法引起轻微地震一家英国能源公司说,可能是它的水力压裂工程导致了今年春天英国兰开夏州一连串轻微的地面震动。
Fracking tremors a British energy company says that its hydraulic fracturing (' fracking ') project probably caused the cluster of small earthquakes that struck Lancashire, UK, this spring.
相比以前所使用的一些根据恒星重力引起的震动来探测行星的方法,凌日探测法可以发现体积小很多的行星。
Transit detection can pick up much smaller planets than previous methods based on gravity-induced wobbles in the stellar parent.
声乐问题就其发声法而言,除了身体的运动震动这一先决条件外,主要是个观念问题,包括思想观念、感觉观念、审美观念等。
As for the way of sound production , the problem of vocal music is mainly about one's concept besides the vibration of body.
以渝怀铁路人和场隧道爆破施工为背景,采用动力有限元法对浅埋隧道掘进爆破引起的地表震动效应进行了数值模拟。
By taking a shallow tunnel on the Yuhuai railway as the research object, ground vibration induced by blasting was simulated numerically using a dynamic finite element method.
杰夫:震动最大的一次可能要算1998年的环法自行车大赛了。
Jeff: the biggest shock must be the 1998 Tour DE France Cycle Race.
用微差干扰降震法实现爆破震动灾害主动控制的关键在于确定合理的微差延期时间。
The key to achieving initiative control of vibration damage by means of wave interference is to ascertain reasonable delay time interval.
从多维地震动输入下的结构三维振动方程出发,给出了结构多维随机振动的振型位移法和振型加速度法。
From the equation of three-dimensional vibration of structures, the methods of multi-dimensional random mode displacement and mode acceleration have been put forward.
复反应法是用来分析地震动力作用下岩土体动力性质的有限元方法之一。
Complex analysis is an effective finite element method to simulate the dynamic response of rock soil mass to earthquake.
定性讨论了采用精确法和其它数值方法计算地震动反应谱的精度和与之相关的问题。
The precision and other problems in calculating response spectra by using precision method and other numerical methods are discussed.
采用双过滤白噪声功率谱模型描述地震动,并用林家浩虚拟激励法进行随机响应分析。
The seismic ground motion is assumed to be double filtered white noise, and pseudo excitation approach is employed to calculate the random response.
随机法模拟地震动目前主要采用点源模型和有限断层模型两种方法。
At present, two main stochastic models, point-source model and finite-fault model, are adopted to simulate ground motions.
本文将QR法和样条加权残数法结合起来,求解高层框剪结构的地震动力反应。
In this paper, QR method and spline weighted residual method are combined to solve seismic responses of tall frame-shear wall structures.
采用复变函数法研究了含有部分脱胶的浅埋圆柱形弹性夹杂对SH波的散射与地震动问题。
The scattering of SH-waves by a shallow buried cylindrical elastic inclusion with a partially debonded curve in half space is studied by function of complex variable method.
考虑地震荷载特征及地下洞室的特点,利用动力时程分析法,对金沙江两家人水电站地下厂房洞室进行地震动力响应分析。
The dynamic time-history response analysis method is used to analyze the dynamic stability of Liangjiaren Hydropower Station on the Jinsha River.
本文应用有限元法研究了不规则的孤突地形对地震动及震害的影响。
In this paper, the effect of irregular topography on ea-thquake motion and earthquake damage is studied by the finite element method.
选择合适的人造地震动时程是高层建筑采用时程分析法计算地震作用的基础。
Appropriate artificial seismic time history is the basis of calculating earthquake action on tall buildings applying time history analysis method.
矢量和法能够较真实地模拟边坡在地震动过程中的动力特征和稳定性状态,为边坡动力稳定性分析提供一种切实可行的分析途径。
The seismic characteristics and dynamic stability of slope can be well simulated with VSAM, so as to provide a practical approach for dynamic stability analysis of slope.
本文将QR法和样条加权残数法结合起来,求解高层框剪结构的地震动力反应。先用QR法建立结构的振动方程,然后,用样条加权残数法来求解。
In this paper, QR method and spline weighted residual method are combined to solve seismic responses of tall frame-shear wall structures.
然而,传统的云图法只能考虑地震动的不确定性,而无法考虑结构的不确定性。
However, this method can only consider the record-to-record(RTR)variation in ground motions but not consider the randomness in structural properties.
然而,传统的云图法只能考虑地震动的不确定性,而无法考虑结构的不确定性。
However, this method can only consider the record-to-record(RTR)variation in ground motions but not consider the randomness in structural properties.
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