Some design defects occurred since it was put into operation in 2005.

自2005年投运以来，逐渐出现了一些由于设计原因产生的缺陷。

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Some design defects occurred since it was put into operation in 2005.

自2005年投运以来，逐渐出现了一些由于设计原因产生的缺陷。

youdao