Therefore, he laid a base course of crushed stone on top of a compact footing instead of the costly stone foundation. 因此他就在壓緊的路基上鋪碎石基層，而不使用造價很高的石塊路基。
The analytical results show that it is possible for the stabilized slaking mudstone to be used as base material. 研究表明，泥岩泥化物纖維固化體具有較好的強度與抗變形特性，可作為巷道路面的基層材料。
Some of the mobilized elements may be reprecipitated at the base of the soil profile. 某些移出的養分可能在土壤剖面底層重新沉澱下來。
Lithographic plate where the printing image area base is usually brass or copper, and the non-printing area is usually stainless steel or chromium. 印紋部份常用黃銅或銅為底層，非印紋部份常用不綉鋼或鉻為面層的柯式印版。
