求翻译：因此，油罐车保养和油罐车修理的关系是辩证的。在日常活动中，一定要处理好两者之间的关系，坚持以保养为重点，克服“重修轻保”“以修代保”的不良倾向。“三分修七分养”说的就是这个道理。是什么意思？

Therefore, the relationship is dialectic of tank maintenance and truck repair. In its day-to-day activities, must handle well the relationship between the two, adhere to the focus on maintenance, overcome the "restoration of light" "to repair dynasty" unhealthy tendencies. "Three seven" said is the truth.