查询词典 double-acting

double action spring bolt：双面弹簧插销

double action press ==> 双动冲床 | double action spring bolt ==> 双面弹簧插销 | double air pump ==> 复式气泵

double doffer card：双道夫梳理机

double diagonal stitch 锯齿形线迹 | double doffer card 双道夫梳理机 | double draft 双区牵伸

double cart wheel：双侧翻

double 雙打;連擊;雙音步 | double cart wheel 雙側翻 | double circle "8" 雙圈"8"字式

double chain riveting：双行并列铆接

double chain pulley 双链滑轮 | double chain riveting 双行并列铆接 | double chain sling 双吊货套链

double box collar：双母接头钻铤

double Bouguer correction 双重布格校正 | double box collar 双母接头钻铤 | double brake assist 双刹车助推器

double column vertical lathe：双柱立式镗床

double chain conveyor 双链运输机 | double column vertical lathe 双柱立式镗床 | double concave lens 双凹透镜

double column vertical lathe：双柱立式车床

double column vertical boring and turning mill 双柱立式镗车床 | double column vertical lathe 双柱立式车床 | double combustion boiler 双炉膛锅炉

double conductor cord：双芯塞绳

double concave lens 双凹透镜 | double conductor cord 双芯塞绳 | double cone mixer 双锥混合器

double crank press：双曲轴压力机

double convex lens 双凸透镜 | double crank press 双曲轴压力机 | double cut file 双纹锉

double cylinder machine：双针筒针织机

double cylinder jacquard 双滚筒提花机 | double cylinder machine 双针筒针织机 | double cylinder mortise dead lock 铁皮铁闸弹子门锁

propanone oxime：丙酮肟

propanone hydrogensulphite丙酮合亞硫酸氫鹽 | propanone oxime丙酮肟 | propanoyl chloride丙酰氯

underweight：不合标准的重量重量不足的

underway 在航在航的 | underweight 不合标准的重量重量不足的 | underwirter's guarantee 保险人保证书