A short pup joint that registers clearly in a collar locator log is a common flag joint.
在接箍定位器测井图中清晰地记录的一个短节是普遍使用的标志管。
Feeder fault locator will carry out the automatic fault diagnosis and precise fault loca-ting after different short-circuits faults have occurred in electrified railway feeder.
微机接触网故障测距装置能在电气化铁路接触网发生各种短路故障后自动进行故障诊断和故障点精确定位。
Feeder fault locator will carry out the automatic fault diagnosis and precise fault loca-ting after different short-circuits faults have occurred in electrified railway feeder.
微机接触网故障测距装置能在电气化铁路接触网发生各种短路故障后自动进行故障诊断和故障点精确定位。
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