A construction site USES two-level RCD protection in accordance with the industry standard, the RCD trips frequently in the general distribution box in the process of construction.

摘要某施工现场按照行业标准，采用两级RCD保护，施工过程中总配电箱内的RCD频繁跳闸。

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Beyond the standard quick trips to summits, the inevitable ties with the United States and a military commitment in Afghanistan he inherited from his Liberal predecessor, the only hints he has given suggest a move away from Africa and towards Latin America, and a preference for bilateralism over multilateralism.

ECONOMIST: Stephen Harper does foreign policy