查询词典 first class

first framing number：第一号肋数

大管轮 first engineer | 第一号肋数 first framing number | 大副 first mate

first hand tap：头攻丝锥

first half of the month 前半个月 | first hand tap 头攻丝锥 | first harmonic 一次谐波

first hand tap：初绞螺丝攻,头攻

"头档","first gear" | "初绞螺丝攻,头攻","first hand tap" | "第一中压汽缸","first intermediate cylinder"

first ionization constant：第一游离常数

first ionization energy 第一游离能 | first ionization constant 第一游离常数 | first coordination sphere 第一配位圈

first ionization constant：一级电离常数

first ion cyclotron wave ==> 基频离子回旋波 | first ionization constant ==> 一级电离常数 | first iron ==> 初铁

first transition series：第一过渡系

first-order kinetics 一级动力论(学) | first transition series 第一过渡系 | first short period 第一短周期

first runnings：初馏物

first short period 第一短周期 | first runnings 初馏物 | first law of thermodynamics 热力学第一定律

The first time you sell a gun：第一次卖枪的感觉

my first Israeli-made Uzi submachine guns.|以色列制的乌兹冲锋枪 | The first time you sell a gun...|第一次卖枪的感觉 | is a lot like the first time you have sex.|很大程度上就象第一次^做**一样

first time derivative：一阶时间导数

first term 首项 | first time derivative 一阶时间导数 | first treatment 预处理

The swift-footed arrive first：捷足先登

243. First come first served. 先到先得. | 243. The swift-footed arrive first 捷足先登 | 244. Great minds think alike./ see eye to eye/ 共识 英雄所见略同

air ventilator：通风管

air purifier 空气滤清剂 | air ventilator 通风管 | air-bleed 空气分泄器

sound motion picture, talkie：有声电影

silent cinema, silent films 无声电影 | sound motion picture, talkie 有声电影 | cinemascope, CinemaScope 西涅玛斯科普型立体声宽银幕电影,变 形镜头式宽银幕电影