PQI must be demarcated in different structure pavements and areas so as to keep the error under 2%.
PQI必须针对不同的测试区域以及不同的测试情况进行相应的标定，使测量误差能够控制在2%以内。
Detecting surface segregation by using PQI has many advantages of rapid, accurate, nondestructive, and non-radioactive, it can be used as reference for the similar engineering construction.
利用沥青路面密度仪对路面离析问题进行检测快速准确、无损及无放射源，可以为同类工程借鉴。
Detecting surface segregation by using PQI has many advantages of rapid, accurate, nondestructive, and non-radioactive, it can be used as reference for the similar engineering construction.
利用沥青路面密度仪对路面离析问题进行检测快速准确、无损及无放射源，可以为同类工程借鉴。
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