The whole control circuit is made into PCB plate, so as to achieve the best effects of operating stability, structural clarity, thorough order and dust-proof and waterproof.

整个控制电路电路采用PC B制版，以达到工作稳定、结构清晰、严整有序，防水防晒防尘的效果。

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"The main driver underpinning Moody's decision to downgrade the UK's government bond rating to AA1 is the increasing clarity that, despite considerable structural economic strengths, the UK's economic growth will remain sluggish over the next few years due to the anticipated slow growth of the global economy and the drag on the UK economy, " Moody's said.

BBC: UK loses top AAA credit rating for first time since 1978