查询词典 first-hand

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

first order derivative：第一次导数

first-order correction 一级修正,一阶修正量 | first-order derivative 第一次导数 | first-order design 一阶设计

first order derivative：一次导数

first order delay 一次时滞 | first order derivative 一次导数 | first order difference 一阶差分

Country First Or Family First：《国家利益&家庭温情之间>

11,> / What's more important in our life; | 12,> / Country First Or Family First; | 13,> / Why or Why not live abroad;

functional catches：活动把手生耳

回零针 fly-back hand | 混合表 combo watch | 活动把手生耳 functional catches

parametric linear programming：参数线性规划

参数模型|parameter model | 参数线性规划|parametric linear programming | 参数最优化|parameter optimization