subbase

基本解释

While holding down on the cone, tighten the subbase screws.
用手压住漏斗，拧紧座垫固定螺丝。
So the void ratio method is feasible in compaction control of subbase.
因此，路基压实用空隙率法控制是切实可行的。
Silt and clay is the main fillings of high-qulity subbase in our country.
粉性土、粘性土为我国高等级公路路基的主要填料。
Research the relationship between dry density,inner friction angle and cohesion of low liquid limit silt subbase.
研究低液限粉性土路基的干密度与内摩擦角、粘聚力的关系；
It is a common phenomenon that lime-fly-ash stabilized-aggregates acts as the base and subbase of highways.
摘要二灰碎石作为各类公路的基层和底基层已是普遍现象。