In addition, fine calcium carbonate and a deformable particle were used to protect the reservoir.

并采用细目碳酸钙及变形粒子对油层进行了保护。

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In addition, fine calcium carbonate and a deformable particle were used to protect the reservoir.

并采用细目碳酸钙及变形粒子对油层进行了保护。

youdao