... minor loop 局部回路 minor oil leakage 较小漏油 minor oil spill 较小溢油 ...
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Ever since 1998, corrosion of drill rod and minor corrosion leakage have occurred in Pinghu oil Field in East China Sea.
从1998年开始，东海平湖油气田在钻井中接连出现了钻杆腐蚀与刺漏现象。
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