查询词典 throw down

switch; double-pole single-throw：双极单投开关

双极双投开关 switch, double-pole double-throw | 双极单投开关 switch, double-pole single-throw | 双投开关 switch, double-throw

double-throw disconecting switch：双投隔离开关

double-throw crankshaft 双臂曲轴 | double-throw disconecting switch 双投隔离开关 | double-throw switch 双投开关

three-throw turnout of contrary flexures：尋向三開道岔

9171 three-throw turnout 三開道岔 | 9172 three-throw turnout of contrary flexures 尋向三開道岔 | 9173 three-throw turnout of similar flexures 同向三開道岔

Throw a sickie：装病以逃避工作

Throw a monkey wrench into the works 确定事情失败了 | Throw a sickie 装病以逃避工作 | Throw caution to the wind 将警惕抛在风中,也就是毫无警惕

throw-over gear：跨轮架

throw-over catch ==> 回转档 | throw-over gear ==> 跨轮架 | throw-over motion ==> 回转

throw-over catch：回转档

throw-over ==> 转接,切换,换速 | throw-over catch ==> 回转档 | throw-over gear ==> 跨轮架

throw-over plow：可换向犁

throw-over motion ==> 回转 | throw-over plow ==> 可换向犁 | throw-over relay ==> 固定双位继电器

throw-over motion：回转

throw-over gear ==> 跨轮架 | throw-over motion ==> 回转 | throw-over plow ==> 可换向犁

Throw someone a line：雪中送炭

*Throw someone a bone 给点小恩小惠 | Throw someone a line 雪中送炭 | Throw someone in at the deep end 临危受命

three-throw switch：三向转辙器

three-throw ram pump ==> 三柱塞泵 | three-throw switch ==> 三向转辙器 | three-throw tap ==> 三通旋塞

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