Possible consequences of weaker-than-standard concrete structures included the paralysation of the metro tunnels.

低于标准混凝土结构的可能后果包括地铁隧道瘫痪。

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Possible consequences of weaker-than-standard concrete structures included the paralysation of the metro tunnels.

低于标准混凝土结构的可能后果包括地铁隧道瘫痪。

youdao