· 物理性质变化 （ Variation of Physical Properties ） 第72-77页 ·力学性质变化（Variation of mechanical Properties） 第77-83页
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准层序地层单元的分界面上物理性质变化明显，测井曲线表现为突变，测井数据小波变换能够表征这种突变。
Logging curves changed abruptly due to obvious variation of physical properties at the interface of parasequence unit. The mutation can be revealed clearly by wavelet transform of logging data.
涡轮流量计与旋涡流量计的流量系数随被测流体的物理性质变化而变化。基于这个原因，在流量计投入使用之前，应测取实际的流量系数。
The flow coefficients of Turbine Flow Meter and Votex Flow Meter will vary as the physical characteristics of the measured fluid change.
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