have been studied and realized
have been studied and realized
已经研究和实现了吗
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The paper has deeply studied the traction battery management system of fuel cell electrical vehicle, and the logical design thoughts and realized methods have been put forward.
本文深入地研究燃料电池电动汽车的动力电池管理系统，提出合理的系统设计思想与实现方法。
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