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以比尔定律为理论依据，采用８０３１单片机构成油石比光电测量仪，实现沥青混合料油石比的测量，具有测量准确、速度快、经济、安全可靠、卫生等优点。
Based on Bill’s law, 8011 single-chip microcomputer is used to compose the oil-to-stone photoelectric measuring instrument to measure the ratio of oil to stone of asphalt mixture. The method has the advantages of accurate measurement, high speed, economy, safety and reliability.