The burial history and thermal history of the outcrop are modelled firstly in China, and the organic matter maturity ro % of subsurface source rock is predicted by artificial changing burial trace.
本文在国内首次模拟了野外露头的埋藏史和地热史，并通过人工改变埋藏轨迹，预测了盆地内中侏罗统地下烃源岩的有机质成熟度。
Opening sealed subsurface drain line manways to attempt to localize the source of tritium into the system.
打开密封的地下水疏水管道人孔以试图定位进入系统的氚源。
An analysis of a passive seismic method for subsurface imaging is presented in which ambient seismic noise is employed as the source of illumination of subsurface scatterers.
本文提出用于地下成像无源地震方法的分析，在该方法中应用环境地震噪声作为地下散射体的照明源。
An area of the subsurface where source rock has reached appropriate conditions of pressure and temperature to generate hydrocarbons; also known as source kitchen, oil kitchen or gas kitchen.
地下源岩已经达到生烃的压力和温度的适宜条件的地区，也有周知的源岩凹陷、生油凹陷或生气凹陷。
A radioactive source is used to bombard the rocks surrounding the wellbore with gamma rays. By counting the backscattered gamma rays, the density of the subsurface rock can be computed.
利用放射性源的伽马射线轰击井眼周围的岩石，通过对反散射伽马射线计数，可以计算出地下岩石的密度。
Seimic precursor occurrence is the result from the action of "double force source", namely tectonic stress and the subsurface fluid force.
地震前兆的产生是“双力源”即构造应力和流体力联合作用的结果；
Denitrification in subsurface is the important source of N2O emission from soil. It is also a key factor of affecting NO3 content of shallow groundwater.
底层土壤的反硝化作用是土壤排放N_2O的重要来源，同时也是影响浅层地下水硝酸盐含量的重要因素。
Denitrification in subsurface is the important source of N2O emission from soil. It is also a key factor of affecting NO3 content of shallow groundwater.
底层土壤的反硝化作用是土壤排放N_2O的重要来源，同时也是影响浅层地下水硝酸盐含量的重要因素。
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