由于路面病情机理的复杂性，因而难以得到一套精确、实用的病情识别诊断判据。
Due to complexity of the mechanism of pavement distress, it is difficult to get accurate and practical criterion for the diagnosis.
由于路面病情机理的复杂性，因而难以得到一套精确、实用的病情识别诊断判据。
Due to complexity of the mechanism of pavement distress, it is difficult to get accurate and practical criterion for the diagnosis.
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