intermediate spring ring 中间弹性圈
intermediate spring clip 中间弹簧夹子片
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The idea of storing energy from a spring in an intermediate electrical form was taken a stage further in Freeplay's clockwork torch.
ECONOMIST: MONITOR
This basic idea of storing energy from the spring in an intermediate electrical form was taken a stage further in Freeplay's clockwork torch, which was launched last year.
ECONOMIST: Clockwork technology
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