useful service life中文什么意思

例句与用法

1. In very aggressive environments , the material degradation and structural distress arising from steel corrosion can dramatically reduce the useful service life of structures , affect their strength , stability and safety , and indeed , even lead to premature failure
   在严苛的侵蚀性环境下，因钢筋腐蚀所引起的材料劣化与结构损害，会降低结构寿命，影响其强度、稳定度与安全性，而且导致提前毁坏。