求翻译：本课题做了大量的粗细集料的筛分试验和密度试验，得到集料的密度、吸水率、空隙率等数据。然后拟出级配曲线进行配合比设计，做马歇尔试验，得到最佳油石比。是什么意思？

This topic have done a lot of the thickness of the aggregate screening test and density test, density, water absorption, porosity of the aggregate data. Then draw up the grading curve of mix design, do the Marshall test, get the best aggregate ratio.

This subject has done a lot of weight sets the density of the screening tests and pilot, set the density, water absorption, and clearance rate, etc. And then the level curve for the design, with Marshall, pilot, and the best oil stone.

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This topic has done a great deal of coarse and fine aggregate density experiment of screening tests and get aggregate data such as density, water absorption, rate of gap. Mix design and prepare gradation curves, Marshall tests, the best stones.

This topic has performed the massive thick fine aggregate screening experiment and the density experiment, obtains data and so on aggregate density, water-absorptivity, percentage of voids.Then draws up the grading curve to carry on the mixture ratio design, is Marshall to experiment, obtains the be