人们在黑色的、含沥青的海洋页岩中发现了约19,000年前沉积下来的鱼龙化石。
The ichthyosaur remains are found in black, bituminous Marine shales deposited about 190 million years ago.
本文研究了改性沥青(K -AHM)与改性淀粉(S -P)对页岩的稳定作用。
The stabilization of shales by modified asphalt (K-AHM) and modified starch (S-P) was studied.
采用高强页岩陶粒制备了一种轻质、抗滑、降噪的新型沥青混合料，并将这种沥青混合料成功应用于路面工程。
A new type of asphalt mixture was prepared with high strength expanded shale and was applied successfully to pavement.
采用高强页岩陶粒制备了一种轻质、抗滑、降噪的新型沥青混合料，并将这种沥青混合料成功应用于路面工程。
A new type of asphalt mixture was prepared with high strength expanded shale and was applied successfully to pavement.
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