| 1. | Check and reset crown - saver on every tour
每个班都要检查并重新调整天车防碰装置 |
| 2. | Check and reset crown - saver on every tour
每个班都要检查并重新调整天车防碰装置 |
| 3. | Function test the anti - freefall brake on monthly basis
每月对天车防碰装置进行功能试验 |
| 4. | Requirements for cluster drilling hole anticollision technology
丛式井井眼防碰技术要求 |
| 5. | Lifting appliances . anticollision device . safety technology code
起重机械防碰装置安全技术规范 |
| 6. | Adjust the crown - o - matic crown saver
调整防碰天车 |
| 7. | Appliance carrying fire vehicle
防碰报警装置 |
| 8. | The hydraulic pneumatic operation system and dual crown block saver which are equipped completely can alleviate worker ' s labour intensity and raise operating security
配备完整的液压气动操作系统和双重防碰天车，减轻工人的劳动强度，提高了操作安全性。 |
