For prices and production reasons coal tar pitch would be instead of petroleum asphalt for road construction .

由于价格和产量原因，煤 沥青将代替石油 沥青用于路面建设。

This paper presents the function of low-temperature tar and the course that gets a qualified asphalt through the tar of predistiUation mixed with the modified-asphalt .

介绍低温 焦油的性质，以及初步蒸馏后与改质沥青混兑，得到合格 沥青的过程。

A study of the application of polyurethane epoxy coal tar asphalt paint on external corrosion protection for buried metalic storage tank

聚氨酯环氧 煤焦 沥青漆在埋地金属储罐外防腐中的应用研究

Medium with worse lubricating property such as light fuel oil heavy fuel oil coal tar asphalt viscose emulsified mixture etc.

润滑性较差的介质，如轻质燃油、重质燃油、煤 焦油、 沥青、粘胶液、乳化液等；

Tar sand oil was extracted from the Xinjiang tar sands and some kinds of asphalt products with special uses and higher value were prepared from the said oil .

前言：以新疆小 西沟、风城两种 油砂为原料，利用甲苯抽提制取的油砂稠油研制开发高价值的特种 沥青产品。

A thick black tar intermediate between petroleum and asphalt .

一种稠而黑的 焦油中间体，介于石油和 沥青之间。

Pavement made of layers of compacted broken stone now usually bound with tar or asphalt . natural road partly metalled

碎石路用几层集中起来的碎石铺筑的人行道，现在一般与 焦油或 沥青 混合天然道路，一部分铺碎石

Heavy ingredient is coal tar pitch is the production of needle coke carbon fiber mesophase carbon microbeads carbon molecular sieve carbon anode materials and high-performance road asphalt important raw materials and precursors .

重质成分即为煤 焦油沥青，是生产针状焦、碳纤维、中间相炭微球、碳分子筛、碳负极材料和高性能筑路 沥青的重要原料和前驱物。

Cover with tar or asphalt of roads .

用 沥青或 柏油覆盖路面。