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pole line switch：电杆上线路开关

pole line hardware ==> 架空线路金属附件 | pole line switch ==> 电杆上线路开关 | pole mount air insulated switch ==> 柱上気中開閉器(PAS)

optimal switch surface：最佳开关面

optimal structure of imports and exports ==> 最优化进出口商品结构 | optimal switch surface ==> 最佳开关面 | optimal switch system ==> 最佳开关系统

switch rod; stretcher bar：道岔拉杆

尖轨保护器 switch protector | 道岔拉杆 switch rod; stretcher bar | 道岔连接杆 connecting bar; following stretcher bar

stock rail：基本轨

曲线辙* curved frog | 基本轨 stock rail | 密贴尖轨 closed switch rail; close contact between switch point and stock rail

Lever spring seat：变速杆弹簧座 Lever switch 杠杆开关

Lever spring 变速杆弹簧 | Lever spring seat 变速杆弹簧座 Lever switch 杠杆开关 | Lever type shock absorber 摇臂式减振器

general-use snap switch：通用弹簧开关,普通快通开关,普通室内开关

general-register machine || 通用寄存器计算机 | general-use snap switch || 通用弹簧开关,普通快通开关,普通室内开关 | general-use switch || 普通开关

cubicle switch; snap switch：室内开关

室内景物 indoor scene | 室内开关 cubicle switch; snap switch | 室内空间 interior space; indoor space

snap action switch; microswitch：快动开关;微开关

"smoothing filter","平化滤波器;平流滤器" | "snap action switch; microswitch","快动开关;微开关" | "snap switch","弹簧开关"

single-pole receiver：单极受话器

single-pole knife switch 单极闸刀开关 | single-pole receiver 单极受话器 | single-pole single throw switch 单极单投开关

sequence switch：程序开关; 序轮机

sequence of switches 开关投入程序 | sequence switch 程序开关; 序轮机 | segment switch 分频开关

artificial color：人工色素餐食飲料

5745人工成本金融成本會計cost of labor | 5746人工色素餐食飲料artificial color | 5747人工受孕人類生育artificial insemination

nymphal moult：若虫脱皮

nymphal molt 若虫脱皮 | nymphal moult 若虫脱皮 | nymphal stage 若虫时期