查询词典 double-fault

double nipples：双头螺纹接管

double nipples reduced 大小头螺纹接管 | double nipples 双头螺纹接管 | double non-return valve 双止回阀

double bar and yoke method：磁棒轭两次互换测量法

"double armature cable ","双层铠装电缆" | "double bar and yoke method ","磁棒轭两次互换测量法" | "double base diode ","双基二极体"

double bar and yoke method：双条双轭法

double bank radial engine ==> 双排星型发动机 | double bar and yoke method ==> 双条双轭法 | double bar gauge ==> 双杆划线规

Planar double-enveloping worm gearing accuracy：平面二次包络环面蜗杆传动精度

平面二次包络环面蜗杆减速器系列、润滑和承载能力 Planar double-env... | 平面二次包络环面蜗杆传动精度 Planar double-enveloping worm gearing accuracy | 平面二次包络环面蜗杆减速器技术条件 Planar double-envel...

double-side wood planer：双面木工刨床

double-side tipping wagon 双边倾卸车 | double-side wood planer 双面木工刨床 | double-sideband signal generator 双边带信号发生器

double-surface wood planer：双面木工刨床

double-surface transistor 双面晶体管 | double-surface wood planer 双面木工刨床 | double-swiveling uncoiler and recoiler 并列回转式开卷-卷取机

double-head wire stitching machine：双头铁丝订书机

double-head tyre 双缘轮胎 | double-head wire stitching machine 双头铁丝订书机 | double-head wrench 双头扳手

double rail track circuit：双轨道电路

double pole switch 双刀开关 | double rail track circuit 双轨道电路 | double range drive 双量程传动

double rail track circuit：双轨轨道回路

"double radial engine","双排星形发动机" | "double rail track circuit","双轨轨道回路" | "double reduction","双级减速"

double rail track circuit：雙軌條軌道電路

3140 double-rail retarder 雙軌條車輛減速器 | 3141 double-rail track circuit 雙軌條軌道電路 | 3142 double-sided shunting signal 雙面調車信號機

mine-run coal：原煤

"mine resistance","通风阻力 ; 矿阻" | "mine-run coal","原煤" | "mine salting","矿石渗杂"

PA: Pennsylvania：美国宾夕法尼亚州州名

ancestry 祖先(集合称), 家系, 血统 | Pa. Pennsylvania 美国宾夕法尼亚州州名 | booster locomotive 辅助机车