secondary field

To unify the magnetic field level of the whole area in marine geomagnetism surveying, the base value of the secondary base station must be reduced to the main base value.

海洋磁力测量多站日变改正中，为了使整个测区磁场水平统一，必须以主站为基准对分站日变基值进行归算。

The secondary current sets up a magnetic field inside the tube.

二次电流在管子内部会产生磁场。

A phase-field simulation on the influence of thermal fluctuation on secondary branch growth in undercooled melt

热扰动对过冷熔体中二次枝晶生长影响的相场法模拟

Using k-ε turbulence model and one step eddy-dissipation model, numerical studies on the reacting flow field of solid rocket ramjet with secondary air inlets were carried out. Influence of mass flow ratio on combustion efficiency and temperature field was analyzed.

采用k-ε湍流模型及单步涡扩散化学反应模型，对二次进气结构的固体冲压发动机补燃室的反应流场进行数值模拟，分析了二次进气流量比对燃烧效率与温度场分布的影响。

Initial geostress field and surrounding rock secondary stress field plays a vital role of construction of tunnel.

初始地应力场及围岩二次应力场对隧道施工起着至关重要的作用。

In order to determine the biological function of the RNA molecules, comparing RNA primary sequence and secondary structure of RNA is becoming very important research topic, so the similarity analysis among the RNA secondary structures has become one of the hot topics of this subject field.

通过比对RNA的一级序列和二级结构来确定RNA的生物功能是目前很重要的研究课题，RNA二级结构间相似程度的研究便成了此课题的热点话题之一。

Secondary key mirror field. This cell contains the most recently retrieved value for the secondary database key ( optional).

辅助关键字镜像字段。此单元格含有数据库辅助关键字（可选）的最近检索值。

The secondary current sets up a magnetic field inside the tube

二次电流在管子内部会产生磁场。

Computation of three-dimensional flow field in secondary gas injection for thrust vectoring nozzle

气体二次喷射矢量喷管三维流场计算

The derivatives of various parameters in IP secondary field are derived from the K-section method of electrical exploration, which is derived from the slope of resistivity curve in primary field, and the IP differential parametric curve method is established.

由一次场电阻率曲线料率导出的K剖面法，引出了激电二次场各参数的导数，从而建立了激电参数微分曲线法。