effective service life meaning in Chinese

有效使用期

By means of practical experiences in sacrificial anode sets and through calculation , the top best combination of sacrificial anode sets is determined , which obtains a balance between the effective service life of sacrificial anode sets , coating and pipeline to be protected
结合实际应用经验，通过理论计算，比选出最佳组合，使牺牲阳极组的有效使用寿命与覆盖层和被保护管道相匹配。