变密度 meaning in English
variable density
Examples
- Variable density wind tunnel
变密度风洞 - Axisymmetric vibrations of circular and annular membranes with non - uniformly varying density
非均匀变密度圆形和环形薄膜的轴对称振动 - It is necessary to record the linear scale before and after log and the time difference curve in the acoustic variable density log
摘要阐述了声波变密度测井时对其进行测前、测后线性刻度及记录时差曲线的必要性。 - The time difference curve may confirm the fast formation ; judge the tool ' s centrality ; verify the bonding quality combining with cbl / vdl curves , and also determine the casing collar position , etc
时差曲线则可以根据时差的大小验证快速地层；由曲线的变化幅度判断仪器在井中的居中程度；结合首波的幅度曲线波列的变密度曲线验证胶结状况是否良好；利用时差曲线的变化确定套管接箍位置等。 - The linear scale before and after log is an effective way to inspect the reality and accuracy of the log curves , such as downhole signal ' s amplitude limit or not and serious distortion , the variable density logging tool ' s signal linear amplification and working stability
测前、测后线性刻度对分析、判定变密度测井曲线的真实性与准确性体现在对井下波列的限幅与畸变程度、检测仪器的线性放大状态和稳定程度。