| 1. | Technical specifications of four - jaw independent chucks
四爪单动卡盘技术条件 |
| 2. | Building hardware ; spring hinges for doors , single action
建筑五金.单动门用弹簧门枢 |
| 3. | Power presses - general purpose single action straight side type
通用单动直边式动力压力机 |
| 4. | Testing of accuracy of four - jaw independent chucks
四爪单动卡盘精度 |
| 5. | Power presses : general purpose , single - action , straight side type
强压机:通用单动直边型压力机 |
| 6. | Triple tube swivel type rotary corer
三重管单动回转取土器 |
| 7. | Two - stroke single - acting
双冲程单动式 |
| 8. | North - finding system based on single dynamic gyros cope and its scheme of moving control
单动调式陀螺寻北系统及其转位方案 |
| 9. | 4 - jaw independent chucks
四爪单动卡盘 |
| 10. | Single acting pile hammer
单动打桩锤 |
