... battery case 释义：电池外壳,电池箱 dynamo battery 释义：电机电池(组) Helmholtz-Gibbs equation 释义：黑-吉二氏方程式:测定直流电池已完成的功 ...
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The crank-handle drives a dynamo through a clever transmission system, and the resulting electrical energy goes straight into a rechargeable battery.
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