For Zhongyuan oil field belonging to the complex part oil field, the large loss was suffered every year for disabled oil pipe.
中原油田属极复杂断块油田，每年因油管失效造成极大的经济损失。
For Zhongyuan oil field belonging to the complex part oil field, the large loss was suffered every year for disabled oil pipe.
中原油田属极复杂断块油田，每年因油管失效造成极大的经济损失。
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