gradation of grain的意思|示意

Based on the influencing factors on asphalt mixture quality and service life of pavement, the control methods of broken stone diameter, gradation, composition, content of grain less than 0.

针对影响沥青混合料生产质量及沥青路面使用寿命的各种因素，提出对碎石粒径与级配、颗粒组成一致性、粗集料中0。

It is very important to determine reasonably the maximum grain size, graded sizes and gradation of the coarse aggregate.

合理确定最大粒径、分级尺寸和级配十分重要。

In this experiment, the different total salt level, different grain gradation artificial sample were compounded by use of the mixture of average design method to determine earth consistency limit.

按混料均匀设计方法配制不同总盐水平、不同颗粒级配的人工土样，通过界限含水率试验测定土的稠度界限。