... 微裂纹 tiny crack 微型电动机 tiny electric motor 尖端，触点，接头；(熔化极弧焊机)导电嘴；顶部，叶顶 tip ...
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tiny particular electric motor 微特电机
Mabuchi Motor has half the world market for tiny electric motors used in electronic gadgets and computer drives.
ECONOMIST: Japan��s growth companies
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