常見例句雙語例句The former is caused by relative motion between fluid phase and solid phase while the latter is caused by geometry characteristic of the borehole.討論了二者的傳播衰減機制的區(qū)別,前者的耗散由黏性流體與固相間相對運動造成,后者的耗散則是由于井孔幾何特征而形成的能量徑向泄漏。By describing the curved borehole and using differential geometry theory, the geometric deformation relations of coiled tubing in the curved borehole were established.通過對彎曲井眼的幾何描述,利用微分幾何理論,建立了連續(xù)管在彎曲井眼中的變形幾何關(guān)系;lib.swpu.edu.cnThe paper quantitatively stated and researched the coal borehole fissure structure with the sharp geometry theory. The paper derived the expression of the coal borehole fissure sharp dimension.利用分形幾何學(xué)理論對煤孔隙結(jié)構(gòu)進(jìn)行了定量的描述和研究,推導(dǎo)了煤孔隙分形維數(shù)的表達(dá)式; 返回 borehole geometry