单词	R-ratio
释义	R-ratio R比率
随便看	period of elliptic curve period of elongation period of emergence period of employment period of encounter period of endogenous respiration period of endurance period of ergodic class period of existence period of expansion period of extension period of filter service period of flaming period of folding period of forecast period of free oscillation period of freezing weather period of gestation period of grace period of growth period of guarantee period of gymnosperms period of half change period of half decay period of heating 钻天打洞钻天觅缝钻头就锁钻头觅缝钻山塞海钻心刺骨钻懒帮闲钻故纸堆钻洞觅缝钻火得冰空き地空き家空き屋空き巣空き缶空き腹空き間空く空く空く