Kan asked that the plant be closed until a tsunami-resistant wall could be built and backup systems could be installed to strengthen the plant against earthquakes.

菅直人要求核电站关闭，直到修好海啸防护墙和安装完后备系统，加强核电站的抗震能力。

youdao

The inner seal (58) and the opening (66) are mounted in a chamber, and the chamber is closed by a second, outer seal (60) that provides a backup in case of failure of the inner seal (58).

该内密封件(58)和该开口(66)安装在腔室内，该腔室由第二外密封件(60)封闭，所述第二外密封件在所述内密封件(58)失效的情况下提供候补。

youdao

The inner seal (58) and the opening (66) are mounted in a chamber, and the chamber is closed by a second, outer seal (60) that provides a backup in case of failure of the inner seal (58).

该内密封件(58)和该开口(66)安装在腔室内，该腔室由第二外密封件(60)封闭，所述第二外密封件在所述内密封件(58)失效的情况下提供候补。

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