采用时差相关分析剔除与警情指标相关性不显著的指标，确定警兆指标；
Delete the warning omen index that are not apparently related with warning condition by using time relation analysis;
在地层评价中，时差相关技术用于阵列声波测井中，阵列声波测井仪的每一个接收器都记录全波列信号。
In formation evaluation slowness-time coherence is used in conjunction with an array-sonic tool in which the full waveforms at each receiver have been recorded.
运用流体力学原理，分析了利用时差法进行超声波流量检测时误差产生的相关原因，并提出了修正方法。
The interrelated factors of the error caused by sonic flowmeter using the time difference by hydrodynamics were analyzed, and the correction method was introduced.
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