不定: indefinite; indeterminate方程: equation不定方程式: indefinite equation不定方程組: indeterminate equations; indeterminate system of equations超定方程: overdetermined equation超定方程組: overdetermined set非穩(wěn)定方程: transient equation決定方程: determining equation; indicial equation欠定方程: underdetermined equation確定方程: determinate equation確定方程式: definitional equation穩(wěn)定方程: steady equation尾流測定方程: wake survey equation不定: 1.(表示不肯定) indefinite; indeterminate 我明天還不定來不來呢。 it's not at all certain whether i'll come tomorrow. 他一天不定來多少次。 i don't know how many times he comes a day. 事情還不定怎樣呢。 it's hard to predict how things will turn out.2.(不穩(wěn)定) unsteady; drifting; fitful 方向不定的風 a fitful wind; 漂泊不定 drifting from place to place; 心神不定 unsteady in mind; 不定代詞 [語言學(xué)] indefinite article; 不定冠詞 [語言學(xué)] indefinite article; 不定式 [數(shù)學(xué)] indeterminate form; [語言學(xué)] infinitive; 不定收入 transitory income定方: sadakata方程: [數(shù)學(xué)] equation 三次方程 cubic equation; 高次方程 equation of higher degree; 線性方程 linear equation; 把方程式簡化成 ... reduce the equation to ...; 物態(tài)方程 equation of state; 化學(xué)方程 chemical equation不定式;不定的: infinitive不定差: irregular deviation不定尺: random length不定詞: infinitive不定的: adventitious; adventive; ambivalent; arbitrary; errant; fluxional; fluxionary; inconstant; indefinit indefinite; indeterminate; indetermined; infinite; infinitive; moveable; mutable; neutral; topheavy; uncertain; undefined; unlimited; unsettled; variable不定地: erratically; inconstantly; variably不定點: nonpoint不定度: degree of indeterminacy; degree of uncertainty; uncertainty不定額: balance due