| 1. | Long - life electrical and mechanical endurance
电寿命、机械寿命长。 |
| 2. | Mechanical and electrical durability test
机械寿命和电寿命试验 |
| 3. | Mechanical life times : 10000
机械寿命次： 10000 |
| 4. | Mechanical life : 2000 operations
机械寿命： 2000次 |
| 5. | Mechanical life times 6000
机械寿命次6000 |
| 6. | Machine life : 2000 times
机械寿命次: 2000 |
| 7. | Maching life : 10000
机械寿命次10000 |
| 8. | Maching life : 2000
机械寿命次2000 |
| 9. | The cable terminals which can switch on and switch off the circuit on - load with current up to 200a have long mechanical and electrical life
电缆接头可操作200a负荷电流，机械寿命和电气寿命长 |
| 10. | How to use and manage hydraulic oil is vital for avoiding abrasion and breakdown and for prolonging the lifetime of machines
正确使用与管理液压油对减少机械磨损和故障，延长机械寿命具有重要作用。 |
