开: open; turn on; switch on; be ...普: general; universal第二: second定律: law开普勒行星运动第二定律: kepler's second law of planetary motion开普勒第三定律: kepler's laws of planetary motion; kepler's third law开普勒第一定律: first law of kepler; kepler's laws of planetary motion第二定律: secondary law开普勒定律: keple's law; kepler laws; kepler's laws of planetary motion; kepler′s law第二定律效率: second law efficiency菲克第二定律: fick’s second law库仑第二定律: coulombs second law牛顿第二定律: newton second law运动第二定律: second law of motion动力学第二定律: second law of dynamics光化学第二定律: second law of photochemistry光吸收第二定律: second law of absorption基尔霍夫第二定律: kirchhoff's circuit laws#kirchhoff.27s voltage law结晶学第二定律: secondary law of crystallography孟德尔第二定律: law of segregation; mendel's second law牛顿运动第二定律: newton's second law of motion; newton′s second law of motion热力学第二定律: second principle of thermodynamics; the second law of thermodynamics开普勒行星运动定律: kepler's law of planetary motion; kepler's laws of planetary motion开普勒: johannes kepler; kappler; keppler科德十二定律: codd's 12 rules