查询词典 Sergeant First Class

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 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

phenol red：酚红,苯酚磺酞

phenol reagent 酚试剂 | phenol red 酚红,苯酚磺酞 | phenol red test 酚红排泌试验

accessory equipment：附件

accessory equipment 辅助设备 | accessory equipment 附件 | accessory part 附件