Peripheral oilfields are also the main direction to increase recoverable reserves, but 90% reserves are located in ultra-low abundance, ultra-low permeability and complex fault-block reservoirs.
外围油田也是增加可采储量的主要方向，但90%的储量位于特低丰度、特低渗透及复杂断块油藏。
Fault diagnosis of PLC control system includes fault diagnosis of peripheral equipment, hardware and software of system.
PLC控制系统故障诊断包括外设、系统和硬软件诊断。
Fault diagnosis of PLC control system includes fault diagnosis of peripheral equipment, hardware and software of system.
PLC控制系统故障诊断包括外设、系统和硬软件诊断。
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