查询词典 first of all

首先 first and last先后：first and foremost

far and near远近 | first and foremost首先 first and last先后 | free and easy轻松自在

first motion approximation：初动近似

初动 first motion, first movement | 初动近似 first motion approximation | 广义射线 generalized ray

first axiom of countability：第一可数性公理

first approximation 首次近似 | first axiom of countability 第一可数性公理 | first boundary condition 狄利克雷边界条件

first base：一垒的位置

first and foremost 首先 | first base 一垒的位置 | first baseman 一垒手

first base man：一垒手

first base一垒 | first base man一垒手 | first batter首位击球员

first base man：一垒员

first base man 一壘員 | first half 前半時 | first line center 前排中

first boundary condition：狄利克雷边界条件

first axiom of countability 第一可数性公理 | first boundary condition 狄利克雷边界条件 | first boundary value problem 狄利克雷问题

first boundary value problem：狄利克雷问题

first boundary condition 狄利克雷边界条件 | first boundary value problem 狄利克雷问题 | first class 第一类

first derivative spectrum：一级导数光谱

first derivative 一阶导数 | first derivative spectrum 一级导数光谱 | first derived curve 导曲线

first order derivative：一阶导数

first order buckling 一次弯曲 | first order derivative 一阶导数 | first order difference equation 一阶差分方程

gladiolus：剑兰

3月23日 剑兰(Gladiolus) 花语:热恋 花占卜:你天性好动,爱冒险犯难,愈是困难或不可为的事情你愈有兴趣去参与,所以你很容易卷入感情纠纷之中,或者爱上你不应该爱上的人.

adustion of coal：煤的可燃性

adumbration 草图,轮廓 | adustion of coal 煤的可燃性 | advance 推进,进展;阿凡司电阻合金;提前,超前;预付