Minimum service life shall be specified for civil engineering design.
土建工程的设计应有最低使用寿命的要求；
Strengthened corrosion monitoring and testing, timely maintenance and minimum temperature and pressure fluctuations proved to be the effective measures for extending the service life of linings.
加强腐蚀监、检测，及时进行维修和减少温度、压力的波动是延长衬里寿命的有效措施。
The diamond reamer has such advantages as higher machining precision, minimum surface roughness, higher efficiency and longer service life.
金刚石铰刀具有加工精度高、表面粗糙度小、加工效率高、寿命长等优点，能很好满足高精度内孔加工的要求。
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