Because of different maturity and hydrocarbon expulsion, the correlation of every organic content in carbonate rock is not very clear, only bitumen "a" has a poor positive bearing on bitumen "c".
由于成熟度、排烃条件等的影响，碳酸盐岩中各种有机质含量的相关关系不明显，仅沥青a和沥青c有比较差的正相关关系。
Acidic aggregates such as gneiss, granite and gritstone are not widely used because of their poor adhesion to bitumen.
片麻岩、花岗岩和砂岩等酸性集料由于与沥青粘附性较差而在公路建设中得不到广泛应用。
The organic elementary compositions of the bitumen are characterized by poor hydrogen and rich oxygen and sulfur, suggesting that it is of pyrobitumen as a result of high maturity and TSR.
其有机元素组成以贫氢、富氧、富硫为特征，属高热演化且受硫酸盐热化学还原作用影响的焦沥青类。
In Ancient Egypt, when a poor person died, his body was merely enclosed in a thick layer of bitumen to keep out the air.
在古埃及，穷人死后，他的躯体仅用厚厚的一层沥青包起来以隔绝空气。
In Ancient Egypt, when a poor person died, his body was merely enclosed in a thick layer of bitumen to keep out the air.
在古埃及，穷人死后，他的躯体仅用厚厚的一层沥青包起来以隔绝空气。
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