Question

一阶一阶[yī jiē]1.■first order

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常用词组1.■一阶保持器 first-order holder;2.■一阶差方程 first difference equation;3.■一阶差分 first-order difference;4.■一阶超前 first-order lead;5.■一阶方程 first-order equation;6.■一阶环路 first-order loop;7.■一阶近似 first approximation;8.■一阶理论 first-order theory; elementary theory;9.■一阶平稳 first-order stationary;10.■一阶时滞 time lag of first order;11.■一阶微分方程 first-order differential equation;12.■一阶微分环节 first derivative element;13.■一阶系统 first-order system;14.■一阶线性微分方程 linear first-order differential equation;15.■一阶语言 {逻} first order language;16.■一阶滞后 first-order lag