The Permian in the Zhanhua - Chezhen sag is the main section of reservoir of formed gas.

沾化 - 车镇凹陷二叠系为煤成气储集层的主要发育层段.

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This is the main section of this part and another key point of this paper.

这部分是本章的重点,也是全文的另一重点.

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This panic selling behaviour pattern signals the end of the main section of the bear market.

这种恐慌的抛售行为形态预示着熊市主要部分的结束.

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The electric valve actuating controller is a main section of the electric valve actuator.

阀门电动装置控制器是阀门电动装置的核心部件.

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