sonic field 中文意思是什麼
sonic field
解釋
聲場-
This conversion is based on the analytic expression of sonic and elastic wave equation, and use the different wave field extrapolation, which is initially used in seismic migration and forward modeling. this paper introduces the easy and efficient finite - difference method to realize the conversion by comparing three different methods
論文經過對三種常規波場延拓方法（ kirchhoff積分法、頻率波數域法和有限差分法）優缺點的比較，採用了簡單易用的有限差分方法來實現這種轉換。 -
The writer made field investigation for sonic rare and precious wild flowers resources in inner mongolia desert region, then elaborated with emphasis 40 species of rare wild flowers which can be introduced in the morphological characteristics, ornamental characteristics and natural distribution area, analyazed their application forms and utilization prospect in landscape gardening ; and for endangered species, their introduction, domestication and reasonable utilization based on protection were put forward
摘要對內蒙古荒漠地區一些較珍稀的野生花卉資源進行野外調查，重點闡述40種可引種利用的珍稀野生花卉資源的形態特徵、觀賞特性和自然分佈區域，分析其在園林中的應用方式及其園林應用前景；對于瀕危植物提出在注重資源保存、保護的基礎上進行引種馴化和合理開發利用的設想。 -
From the past research work, it has been known that the main mechanisms of spectral lines broadening in the atmospheres of stars are doppler broadening, spectral lines broadening by rotation and expending, pressure broadening ( stark broadening ), natural broadening, spectral lines broadening in magnetic field, sonic waves and alfv e n waves broadening, etc. but it is not enough to explain the recent observation phenomena by above theories of spectral lines broadening
以往的研究已經判明，在恆星大氣內譜線致寬的主要機制是多普勒致寬、自轉源或膨脹源引起的致寬、壓力致寬（斯塔克致寬） 、自然致寬、磁場引起的加寬、聲波及阿爾文波致寬等。然而，已有的譜線致寬理論不足以解釋最近的一些觀測現象，仍存在觀測值與理論值之間的差異。 -
Investigation on the gas flow field with viscous, active, stride - sonic, compressible for high voltage sfs circuit breaker
高精度有粘、可壓縮、有源、跨音速氣流場求解的研究。 -
Application of sonic logging in average velocity field
聲波測井資料在平均速度場中的應用 -
The criterion to judge the relaxation depth of rock mass of excavation slope is defined by analyzing data of sonic wave speed and field investigation, and the distributing law of various weathered degree fossil weathered rock on slope of are educed. the mechanics parameters of relaxed rock mass are studied by using relational expression between mechanics parameters and value of sonic wave speed, which provide convenience for the study of mechanics parameters of rock mass in different state
在此基礎上，利用現場調查和實測波速資料，制定了邊坡開挖巖體鬆弛帶深度的判定標準，從而分析得出了各風化程度古風化巖邊坡的鬆弛帶分佈規律，並採用波速與巖體力學參數的相關式對鬆弛帶巖體的力學參數進行了研究，為研究不同狀態下巖體的工程特性提供了方便。 -
Thus, the study of the acoustic field of the layer and fractures in and outside of a borehole is the theoretical base for sonic logs
而研究具有分層和裂縫地層井內外聲場的問題是聲波測井的理論基礎。
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