While installation, transport and other industrial accidents of the petroleum pipeline, it is unavoidable to encounter various damage and defect, such as surface flaw, crack, etc.

石油管线在安装与油气输运过程以及其他工业事故中，难免会产生各种各样的损伤和缺陷，如出现表面凹坑、裂纹等。

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Postoperatively, the visual damage and optic field defect were recovered in 18 cases, while 12 cases were unchanged.

术后视力损害和视野缺损均有不同程度恢复18例，12例视力无改变，2例视力下降。

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A kind of cylinder jacket used in Marine diesel engine is very easy to damage because of adverse working conditions and inborn defect in design.

某船用柴油机气缸套由于其恶劣的工作环境，再加上先天性设计上的缺陷，因此很容易损坏。

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This operation is intended to restore bladder function to people with spina bifida, a congenital defect that causes nerve damage and a loss of sensation and muscle function below the waist.

ECONOMIST: Chinese ethics