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。
Packages stored in JAR files can be optionally sealed to enforce version consistency and security.
存储在JAR文件中的包可以选择进行密封，以增强版本一致性和安全性。
Its fate was sealed in 2001, when South-African-based company Masincedane Sport began to mass-produce a plastic version, thereby making it essential kit for football supporters across the country.
2001年，南非一家体育用品公司Masincedane Sport开始大规模生产塑料的vuvuzela，由此，vuvuzela便成了南非球迷装备中的必备品。
Bidder should provide the printed version of various valid qualification certificates, such as business license and operation license, etc (The copy must be signed or sealed by the bidder).
投标人须提供各种（合格有效的）资质证书的复印件：如营业执照、经营许可证等；
Bidder should provide the printed version of various valid qualification certificates, such as business license and operation license, etc (The copy must be signed or sealed by the bidder).
投标人须提供各种（合格有效的）资质证书的复印件：如营业执照、经营许可证等；
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