1.
single-stage double-acting centrifugal fresh water pump
单级双动式离心清水泵
2.
dual two trailing shoe brake
双向双从蹄式制动器
3.
dual two leading shoe brake
双向双领蹄式制动器
4.
hand-operated single-and-double beam bridge crane
手动单双梁桥式起重机
5.
full automatic two-station type shoes making machine
全自动双站式制鞋机
6.
doublesquirrel-carge induction motor
双鼠笼式感应电动机
7.
air cooled flat twin engine
卧式气冷双(缸)发动机
8.
vertical straight side single action two point press
立式单动双刃矫直机
9.
mobile two-arm resin sand mixing unit
移动式双臂树脂混砂器
10.
double stage voltage regulator
双节电磁振动式调节器
11.
dual-acting band brake
双向作用带式制动器
12.
open back double action drawing press
后开式双动拉伸压力机
13.
open-type double action crank press
开式双动曲柄压力机
14.
double lift double cylinder jacquard
复动式双花筒提花机
15.
series dual chamber brake master cylinder
串列双腔式制动主缸
16.
parallel dual-chamber air brake valve
并列式双腔气制动阀
17.
series dual -chamber air brake valve
串列式双腔气制动阀
18.
change-pole motor
变极式电动机(一种双速电动机)