Under these circumstances, the word equation above becomes d dt 43pR3 1⁄44pR2 dR dt R2 À 4 3R3, (83.2) or dR dt 4pk1 pk2 1⁄4k 1 À 1 3k2R 1⁄4k(K ÀR), ...
確定! 回上一頁