检测前跟踪 TBD ; Track Before Detect ; Tracking Before Detection
测前校验 before-log-verification ; before-log-verific
测前刻度记录 before calibration summary
公测前测 Pre-OBT
检测前面 front detecting type
检测前导门限 Preamble Threshold
公测前测试 Pre Open Beta testing
测前速度 Pre-Test Speed
测前馈 Preview feed forward
接入探测前缀帧长 PRBLEN
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。
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。
It is necessary to record the linear scale before and after log and the time difference curve in the acoustic variable density log.
故障字典法通常需要在测前仿真各种故障状态，提取出与故障状态相对应的电路特征，再将两者一一对应关系列成一个表，即为字典。
The approach of fault dictionary often needs to simulate all fault states and extracts corresponding character of circuit , then setup the dictionary by corresponding relation.
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