根据碳同位素与氦同位素以及气组成分析，表明该区所产天然气为典型的生物甲烷气。
According to the results of carbon and helium isotopic analyses and gas component analysis, it is thought that the natural gas produced in the region belongs to a typical biogenic methane gas.
本文讨论了不同补料成分对主要微生物生理群和产气率的影响。
This paper studied the effect of different materials added during fermentation on the activity of major bacteria physiologic groups and gas-production rate.
高剂量绞股蓝皂甙降低了微生物发酵的理论与实际产气量，并呈显著的线性和二次方效应，产气速率与皂甙剂量之间有着显著的线性效应。
The theoretical and actual gas production was reduced at high saponin levels, and there were significant linear and quadratic patterns between gas production and gypenoside levels.
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