epicentral 中文意思是什麼
epicentral
解釋
震中的-
At greater epicentral distances the rayleigh waves become very prominent.
當離震中距離更大時，瑞雪波才變得顯著。 -
Based on some macroscopic evidences gained in actual earthquake fields and on a preliminary theoretical analysis, it has been pointed out that the rayleigh waves should be an essential cause of liquefaction for the fields beyond the epicentral region with saturated sand deposits at shallow depths
（ 4 ）首先介紹了提出rayleigh波是液化主因的背景，基於宏觀震害資料的啟示，提出了rayleigh波可能是造成砂土液化的主要動因的新見解。並用單相介質模型的總應力法，分析了rayleigh波可能產生的應力大小。 -
Determine the scope of the [ impending ] earthquake. how large will the epicentral area be
確定即將來臨的地震的范圍。震中區有多大？ -
Basic characteristics of current strain field in the epicentral area of xingtai, bohai, haicheng and tangshan strong earthquake
海城和唐山大地震震中區現今應變場的基本特徵 -
It is apparent that in general li ' s mind that ( 1 ) the large earthquake would surely occur ( “ how large will the epicentral area be ? ”
顯然，在李將軍的頭腦中， （ 1 ）一個強震肯定將發生「震中區有多大？ 」 -
The reservoir - induced earthquake magnitude is usually ! low but its epicentral intensity is high and is nearby important equipments. so it can destroy seriously project and induce secondary disasters
由於水庫誘發地震震中都緊鄰重要水利工程設施，且震源淺，震中烈度高，所以雖然震級大部分不高仍然可造成大的破壞。 -
In addition, effects of several factors such as local site conditions, focal mechanism, epicentral distance and seismic magnitude on these parameters are discussed, and several significative results and conclusions are obtained. in all records there are about 1 / 3 vertical ground motion ’ s peak acceleration bigger than 2 / 3 of the corresponding horizontal one, so the action of vertical ground motion should not to be underestimated. vertical design response spectrum equals that the horizontal design response spectra times 65 % is probably unsafe when period is short, and suggest adopting different coefficients when at different periods
本文基於對大量歐洲強震記錄的研究，分析了地震動豎向與水平向分量在峰值加速度、反應譜值、頻譜周期等參數方面的差異，以及這些參數與場地、震源機制、震級和震中距的關系，得到了以下有意義的結果和結論:在本文分析的地震記錄中大約1 / 3的記錄加速度峰值比大於2 / 3 ，豎向地震動分量的作用不可低估;在短周期，豎向地震動影響系數的最大值僅取為水平向地震動影響系數最大值的65 %是偏於不安全的，可以考慮按周期分段採用不同的折減系數;我國現行抗震規范中設計反應譜特徵周期的取值偏低，可能是偏於不安全的;豎向與水平向地震動分量卓越周期的比值在0 . 7 - 0 . 9之間，豎向設計反應譜的特徵周期應有單獨規定。 -
Four records with different earthquake magnitude, epicentral distance and spectrum ingredient are selected as the seismic input. the result of it compared with the result of test and spectrum analysis. lastly, on the basis of analysis result the conclusion is drawn and the recommendation and perspectives are put forward
選取了el - centro波等四條不同震級、不同震中距及頻譜成份不同的地震波作為輸入波，對其進行了反應譜分析，計算結構在其作用下的動力反應，並與試驗結果及反應譜分析結果進行對比。 -
This is an important document, because the serious damages reported in it, such as collapse of gables and chimneys, may in part explain why some communes, brigades, and individuals in the epicentral area made their own evacuation decisions without explicit instructions from higher levels
這是一項重要的文件，因為它對一些嚴重的破壞進行了報告，如山墻和煙筒倒塌，可能部分解釋為什麼震中地區的一些公社、大隊、個人自己做出了撤離的決定，沒有等待向更高層請示就這樣做。 -
This year focused on responsive action to be taken in the case of an epicentral earthquake in the capital
今年的重點在於震中位於首都的地震發生時的反應行動。
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