Light always travels at the same constant velocity.
光总是匀速传播.
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With professional technology and humanity service concept. Kaidi company provides high - quality Rzeppa constant velocity joins for customers.
凯迪公司以专业化的制造技术与人性化的服务理念,为客户奉献高品质的等速万向节.
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Pump, air pump and so on generally is pulling by squirrel - cage motor, moving in constant velocity.
泵 、 风机类负载通常采用鼠笼式异步电动机拖动, 恒速运行.
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