In the late 1940s Georg Neumann, a German engineer, succeeded in fine-tuning the battery's chemistry to avoid this problem, making a sealed version possible.
1940年代晚期，德国工程师GeorgNeumann成功地微调了电池的化学机制，从而消除了这个问题，使得将之密封包装成为可能。
In the late 1940s Georg Neumann, a German engineer, succeeded in fine-tuning the battery's chemistry to avoid this problem, making a sealed version possible.
1940年代晚期，德国工程师GeorgNeumann成功地微调了电池的化学机制，从而消除了这个问题，使得将之密封包装成为可能。
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