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Extensible dog lead has spool for lead material and magnets which charge electrical storage unit as lead is withdrawn by animal
Extensible dog lead has spool for lead material and magnets which charge electrical storage unit as lead is withdrawn by animal
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机译:可延伸的狗铅芯具有用于铅材料和磁铁的线轴,当动物撤出铅时,它们会为电存储单元充电
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摘要
The lead (8) spool (7) has a number of magnets (1) inducing an electrical current in a coil (2) which charges a battery or condenser (4) through diodes (3) and a switch (5) to operate a lamp or other electrical device (6).
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