查询词典 commutation switch

single-ploe single-throw switch：单刀单掷开关

single-phase protective branch switch 单相保护式分路开关 | single-ploe single-throw switch 单刀单掷开关 | single-pole distribution switch 单极分路开关

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

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

three pole single-throw switch：三刀单投开关

three pole knife switch 三极闸刀开关 | three pole single-throw switch 三刀单投开关 | three pole switch 三刀开关

three pole single-throw switch：三刀单掷开关

three-pole knife switch 三极闸刀开关 | three-pole single-throw switch 三刀单掷开关 | three-pole switch 三刀开关

switch; single-throw：单向开关

单极开关 switch; single-pole | 单向开关 switch; single-throw | 弹簧开关 switch; snap

switch; single-throw：单投开关

单式交叉转辙器 switch, single-slip | 单投开关 switch, single-throw | 弹簧开关 switch, snap

SW switch：开关、手把

SW switch 开关 | SW switch 开关、手把 | SW short wave switch 短波:开关

switch box：开关箱

开关设备 switch gear | 开关箱 switch box | 开关箱 switch cubicle

switch box：开关箱,配电箱

switch block 开关组 | switch box 开关箱,配电箱 | switch bracket 开关架

key switch box：钥匙开关盒

key switch 钥匙开关 | key switch box 钥匙开关盒 | key-operated switch 钥匙开关

Minstrel Show：化装黑人乐队的演出

show cause 提出正当理由 | minstrel show 化装黑人乐队的演出 | medicine show 走江湖卖药

punctual aspect：準時式;準時體;一次體

punched card 穿孔卡片 | punctual aspect 準時式;準時體;一次體 | punctuation 標點符號用法