1·The effects of aggregate gradation on lime-fly ash bound macadam "s compression strength in varied ages were analyzed. The direct-vision and variance analysis were adopted in indoor tests."
根据室内试验的结果，采用直观分析和方差分析方法分析了集料级配对二灰碎石混合料不同龄期抗压强度的影响。
2·Macadam type bases involving successive layers of crushed rock bound with rock dust were also used.
人们曾经使用“石结”基层——几层由石粉黏结在一起连续的碎石层。