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养护实质上是一种长周期的强制保养措施,它是在路面尚处于良好状况,或者是有某些病害先兆时进行,是一种费用—效益比非常良好的养护措施。
Conservation is essentially a long-term compulsory maintenance measure. It is carried out when the pavement is still in good condition or when there are some disease precursors. It is a very cost-effective conservation measure.