long period vertical seismograph

Long-period seismographs at the Observatory's headquarters detect tremors world-wide and information on significant tremors is made public through the media.

天文臺總部并裝設長周期地震儀，監察世界各地的地震，重要的地震消息會透過傳媒向市民公布。

The calculation program for the seismic detector constant in short period record recorded with pen

短周期筆繪記錄地震儀常數計算程序

vertical-component high-gain short-period seismometer

垂直方向高增益短周期地震儀

STUDY ON PRE-SLIP PRECURSOR OF THE EARTHQUAKE--LONG PERIOD PRECURSORY SEISMIC WAVE

預滑與地震前兆——長周期波動研究

Long wave earthquake has come to Nagoya. Maybe there is an magnified earthquake far from here.

中午左右在名古屋感覺了長周期的地震波。有可能遠方有大地震呢。

Characteristics of Far-Field Ground Motion of Wenchuan Earthquake and the Effect on Long-Periodic Structures

汶川地震遠場地震動特征及其對長周期結構影響的分析

Study of long-period correction of seismic accelerogram for dynamic interaction analysis

相互作用分析中地震動輸入長周期校正研究

Study on Atonement of Long Period Ingredient in Earthquake Ground Motions Based on Wavelet

地震動長周期成分缺失彌補的小波方法研究

A Comparative Study on Long-Period Seismic Responses for High-Rise Structures

高層建筑結構長周期地震反應的比較研究

STUDY ON ATTENUATION RELATIONSHIPS OF LONG PERIOD GROUND MOTIONS BASED ON NGA

基于美國NGA項目的長周期地震動衰減關系研究

Simulation of Long Period Strong Ground Motion at Near-Field by Numerical Green Function Method;

基于數值格林函數方法的近場長周期強地震動模擬

but that was precisely the idea adopted in some of the early instruments,

但是早期記錄地震波的儀器，

A seismograph records earthquakes.

地震儀能自動記錄地震。

seismometer free period

地震檢波器自由振蕩周期

Periodic slow earthquakes from the Cascadia subduction zone

卡斯凱迪亞消減帶的周期性的慢地震

Varying Period Predictive Deconvolution of Imaging Gathers

地震成像道集域的變周期預測反褶積

Effect of Protruding Topography on Characteristic Period of Ground Motion

平臺地形對地震地面運動特征周期值的影響

These phenomena could be caused by the effect of long-period wave generated from a large earthquake on far-field.

這些可能是大震的長周期波在遠場的效應所致。