At the initial operation stage after the quality system is established.

质量体系建立后的运转初期。

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However, our research on the ground-source heat pump system is still in the initial stage, and not yet mature design and operation of the lessons learned.

但是，我国在地源热泵的深入研究方面还处于起步阶段，尚没有成熟的设计与运行的经验总结。

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Now Guangxi Beibu Gulf port group have many problems in set local ACTS, infrastructure, management system, port industry, operation, and many other aspects because of the initial stage.

目前广西北部湾港口群建设处于起步阶段，在集疏运、基础设施、管理体制、临港工业、运营协调等诸多方面都存在问题。

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