directional force seismic source 方向为震源
seismic force 地震力 ; 震力
force-based seismic design 基于强度抗震设计
design seismic force 设计用地震力
inelastic seismic force 非弹性地震力
equivalent seismic force 等效地震力
horizontal seismic force 水平地震力
seismic force coefficient 地震内力系数
seismic shear force 地震剪力
If the equipment vibration period is hard to get, we could use the static force seismic coefficient theory to define the seismic effect to ensure the equal safety of the equipment and building.
对周期确定较难的设备，通过静力地震系数法，确定地震作用，以求设备与建(构)筑物处于同等安全度。
The author tries to investigate the force source causing the drastic crustal deformation and frequent seismic activities in southwest China.
并对中国西南部壳体强烈的地壳形变以及频繁的地震活动的力源机制问题进行了探讨。
Based on the analysis result, practical seismic force coefficients for single-layer latticed cylindrical shells are proposed.
在大量统计分析的基础上，归纳出可供实际工程设计参考的地震内力系数建议取值。
应用推荐