1.
Approach to Adaptbility of Natural Lake Asphalt and Its Prospects
关于天然湖沥青应用性能与前景的探讨
2.
native asphaltic pyrobitume
天然地沥青质焦沥青
3.
A black, viscous natural bitumen.
软沥青一种天然的黑色粘性沥青
4.
asphlt block (excl. those for remelting)
天然沥青块（不包括需再次融化的天然沥青块）
5.
A Study on Pavement Performance of Chinese-Made Natural Rock Asphalt Modified Asphalt Mixture
国产天然岩沥青改性沥青混合料路用性能研究
6.
Applied Study of Natural Rock Asphalt to Asphalt Pavement
天然岩沥青在沥青路面中的适用性研究
7.
The indoor performance study on the asphalt mixture modified by natural rock asphalt
天然岩沥青改性沥青混合料室内性能研究
8.
Influence of Rock Asphalt Modified Bitumen on Asphalt Rheological Property
天然岩沥青改性对沥青流变性能的影响
9.
bituminous block (excl. those for remelting)
地沥青块（不包括需再次溶化的天然沥块）
10.
container, asphalt cast or moulded
天然沥青容器,浇铸或模制
11.
board, roofing, enveloped in or covered on both sides with asphalt or similar bituminous material
薄板，屋顶月双面包有或覆盖有天然沥青或类似含地沥青材料
12.
A trademark used for a natural black bitumen employed in the manufacture of acid, alkali, and waterproof coatings.
硬沥青适用于制造酸、碱和防水服的一种天然黑沥青的商标
13.
A natural black bitumen used in the manufacture of acid, alkali, and waterproof coatings.
硬沥青用来制造酸、碱和防水涂层的天然的黑色沥青
14.
Identification of natural gas origin using the characteristics of bitumen and fluid inclusions
应用流体包裹体和沥青特征判别天然气的成因
15.
Composition,Category of Natural Asphalt and Its Technical Applicability in Pavement
天然沥青组成、类别及在路用工艺中的适用性
16.
On experiment analysis of optimum mix amount of modified asphalt in Asphalt of Trinidad Lake
特立尼达湖沥青改性沥青最佳掺量的试验浅析
17.
Natural Resources: bauxite, coal, crude oil, iron ore, natural asphalt, calcium, silica, mica, salt, clays.
自然资源：铝矾土、煤、原油、铁砂、天然沥青、石灰、硅石、云母、盐、粘土。
18.
Any of various natural bitumens, such as mineral pitch or asphalt.
树脂，自然沥青某种自然的沥青，如矿石沥青或树脂