筑路: pave a road; build a road 短语和例子筑路工程正在进行中。 the road construction work is in progress.; 筑路队 road gang; 筑路机 road machine; road scraper; road builder; road grader; 筑路机械 road building machine;
Derivatives from coal pyrolysis - coal tar and pitch based binders and related products : road tars - characteristics and test methods 煤热分解的衍生物.煤焦油和沥青基粘合剂和相关产品:筑路焦油.特性和试验方法