震源大小 的英文怎麼說

中文拼音 [zhènyuándàxiǎo]
震源大小 英文
focal dimension
  • 震 : Ⅰ動詞1 （震動） quake; shake; shock; vibrate 2 （情緒過分激動） be greatly excited; be deeply ast...
  • 源 : 名詞1. （水流起頭的地方） source （of a river）; fountainhead 2. （來源） source; cause 3. （姓氏） a surname
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 震源 : [地球物理] focus; seat; hearth; centre; centrum; origin
  1. In the case that hypocenter depth is far less than the epicenter distance without depth phases available, only the relative epicenter distribution could be obtained accurately by double difference method, the depth determined would be not stable

    當震源深度遠小於震中距時，如果沒有深度震相的參與，只能得到誤差較小的震中相對分佈，深度的相對位置仍有較大的誤差。
  2. The principle of vibrator is to introduce scattered energy to underground in a comparatively long time, and collect the energy through correlation and compress it into a narrow pulse. the portable high - frequency vibrator system, developed by key lab of geo - exploration and instrumentation ( jilin univ ), ministry of education, generates chirp signal and accumulates energy through a long - time bestiring. according to the characteristics of vibrator, the seismic recorder that operates on - line with vibrator must have these functions as follow : first, it must have the ability of recording a great quantity of data. second, it must have assistant channels to sample reference signal. third, it must have the function of data correlation in real - time

    可控震源利用可控的小能量、長時間激發波來實現沖擊震源瞬時產生的大能量激發波。在利用可控震源進行地震勘探時，要求地震儀長時間記錄地震信號，這對地震儀的采樣長度提出了很高的要求。受存儲量和數據傳輸速度的限制，絕大多數地震儀很難對如此大的數據量進行記錄，同時，可控震源要求地震儀有兩個輔助通道並且具有數據相關功能，目前國內還沒有出現滿足要求的地震儀產品。
  3. The result show, most of the medium - strong earthquakes faults are dip - slip reversed, distribution of the main stress p axis is sector from west to east ; there are large difference between kuche and baicheng region in seismic activities, but the characteristic of cluster is same in the two region ; the distribution of medium - strong earthquakes is nw direction in baicheng region, it show, there can have a concealed fault ; small earthquake clusters ' activities can reflect the effect that local medium - strong earthquakes to the secondary small structure around it

    結果表明：南天山東段中強震震源斷錯以傾滑逆斷為主，主壓應力p軸由西到東呈扇形分佈；相距較近的庫車與拜城地區地震活動存在較大差異，但均存在明顯的成叢性分佈特點；拜城地區中強地震分佈呈北西向可能預示著該區存在隱伏斷裂，小震群活動則可能反映了局部中強震對周圍次級小構造的影響。
  4. The envelop functions of ground motion for the small - moderate earthquakes in the near - source field are different with those of the larger earthquakes. there are not stationary part any more in the envelop function of these ground motions. after we analyze the characteristics of these envelope functions we take a exponent function instead the three part function

    近場的中小地震由於其在到震源的距離與震級方面的特殊性，其時程包絡函數的形狀與遠震、大震有很大的區別，在遠震、大震包絡函數中很常見的平穩段不再存在。
  5. In order to make the studying about the seismic exploration method possess systematic nature and the ability of tackling key problem in front - zone of mountain, we have done the research work of tackling key problem aiming at the field gathering technology of seismic exploration of the complicated structure belt ( the construction of underground and the earth ' s surface condition are complicated ) of front - zone of mountain in this text, and a large number of relativity trials by the close combination of production and scientific research, summarized a set of field method of the complicated structure belt of front - zone of mountain, adjusted both of trial factor and construction factor of the field gathering in time, achieved finally the goal of making its structure character clear

    近幾年來，隨著地震勘探裝備和技術的改進，野外資料採集技術有了新的進展，主要表現為多種震源聯合激發方法（井炮和大噸位可控震源） ，基於地表條件及表層調查基礎上的激發選點方法，小道距、長排列、高覆蓋接收方法，基於模型的「分段、分線、分區」觀測系統目標設計方法等，取得了顯著的勘探效果。為了使山前地震勘探方法研究具有系統性和攻關性，通過本文對復雜山前復雜構造帶地震勘探的野外採集技術進行攻關研究，進行了大量具有針對性的試驗，總結出了一套山前復雜構造帶野外施工方法，最終達到了搞清復雜山前復雜構造帶山前復雜構造帶構造特徵的目的。
  6. Adopting this model, we analyze the seismic hazard near the chelungpu fault that generated the chi - chi ( jiji ) earthquake with magnitude 7. 6 and the following conclusions are reached. this model is reasonable on the base of focal mechanism, especially for sites near potential earthquakes with large magnitude ; the attitudes of potential rupture surfaces have great influence on the results of probabilistic seismic hazard analysis and seismic zoning

    結果表明：採用潛在地震破裂面源模型是合理的，因為它可以模擬地震破裂面與地震動影響場的三維展布特徵，尤其適用於較大震級地震的近場區域；潛在地震破裂面源的大小、產狀，對近震源場點的地震危險性分析和地震區劃結果有明顯的控制影響。
  7. Because the data used in these studies are mainly from the large earthquakes, magnitude greater than 5. 5, these results are not very suitable for the estimation for the small - moderate earthquakes

    由於這些研究所使用的資料的震級與距離的范圍均較大，且一般以大震為主要研究對象，其結果對近源中小地震動參數（ m5左右）估計的可靠性相對較差。
  8. To obtain the stress level at the earthquake source, this paper sets forth the solution of the stress magnitude at the earthquake source by seismic stress drop and the stress axis deflections before and after large earthquakes

    摘要為求解震源處應力量值，運用大地震造成的應力方向偏轉和地震應力降給出了求取震源處應力大小的方法。
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