In terms of molecular geochemistry indexes, the hydrocarbon source rocks both in lower Jurassic and middle Jurassic can be classified as lake facies and swamp facies.
根据分子地球化学指标，下侏罗统和中侏罗统烃源岩都可划分为湖相和沼泽相两类。
2
The fan-noise is classified according to the noisy source, some of the schemes of noise integration control and reduction are puts forward in this paper.
阐述了局部通风机噪声的分类，产生这些噪声的原因，以及综合控制、减小这些噪声的方法。
3
There are very thick Upper Tertiary marine hydrocarbon source rocks in Yong-Qiong basin, containing abundant supermicro resinous materials; Thus, they are classified as good-very good source rocks.