The infrared image reveals that this dark cloud, called M17 SWex, is forming stars at a furious rate but has not yet spawned the most massive type of stars, known as O stars.
Based on the analysis of hydrocarbon migration modes, the reservoirs forming mode is built up, then the characters o...
在缓坡带油气运移方式分析的基础上，建立了相应的成藏模式，并讨论了缓坡带油藏的形成与分布特点。
3
The influences of preparation method, the calcined temperature and auxiliary forming reagent on the activity of the Fe Mo Co o catalyst for oxidation of methylal to formaldehyde were studied.