t formation 中文是什么意思
发音:用"t formation"造句"t formation"怎么读
- Because of the merit of continuity , economical efficiency , reliability and high resolution , the well logging has shown its advantages , especially in some drilling engineering problem , such as the prediction of rock drillability , selecting the drill bit types , prediction of formation pressure , calculation the in - situ stress , evaluating the borehole walls stability and determining the reasonable mud density , and etc . aiming at the engineering accidents , for example the well spout , well leak , well collapse and the drill blocking during the drill engineering in the t formation in north - east of sichuan , some farther studies of formation pressure in feixianguan from well - logging information are presented in this dissertation
In American football, a T formation is a formation used by the offensive team in which three running backs line up in a row about five yards behind the quarterback, forming the shape of a "T".