单词	力呼
释义	同Exsufflation
随便看	precession precessional precessional constant precessionally precessional motion precessional torque precession angle precession camera precession cone precession constant precession frequency precession gyroscope precession in declination precession in ra precession in right ascension precession method precession moment precession of declination precession of equinox precession of equinoxes precession of the equinox precession of the equinoxes precession of the equioxes precession parameter precession photograph