常見例句A quasilinear equation is one in which the highest-order derivative appears linearly.最高堦導數線性地出現(xiàn)的那種方程是準線性方程。Quinestrol in compound preparation was directly determined by using derivative spectrometry.採用一堦導數光譜法對複方炔諾孕酮片中炔諾孕酮的含量進行了測定。 返回 Fourth-derivative