求翻译：尾轴管密封装置的缺陷主要是漏泄,其原因是防蚀衬套严重磨耗,橡胶圈老化或裂纹以及轴系不正所致,其余细节因结构不同而异。是什么意思？

Stern tube seal leakage defects mainly, the reason is a serious corrosion bushing wear, aging or cracks in the rubber ring is not correct due to the shaft, and the remaining details of the structure vary due.

stern tube sealing device is mainly the shortcomings, the reason for this is that leakage corrosion-resistant lining serious wear, aging or cracks as well as rubber ring shaft is not correct, the remaining details due to structural differences.

The screw shaft tube packing assembly flaw mainly is the leakage, its reason is the corrosion prevention bushing serious abrasion, the oak rubber or plastic rings gets older or the crack as well as the shafting is not being the result of, other details are different because of the structure and are

Stern tube sealing device of defects is primarily leakage, the reason for this is corrosion-resistant lining severe abrasion, rubber ring and shaft are not caused by aging or cracks and the remaining details structures vary.

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