線性橢圓型方程 elliptic linear equation: 線性橢圓方程elliptic equation: 橢圓方程; 橢圓時(shí)差; 橢圓型方程; 橢圓型微分方程elliptic difference equation: 橢圓差分方程; 橢圓型差分方程elliptic differential equation: 橢圓微分方程; 橢圓型微分方程elliptic nonlinear equation: 非線性橢圓方程下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯