| 1. | He just did his job in a matter-of-fact way and was not to be interested in gaining merit , but only in avoiding making mistakes .
他在工作上进取心不大，常常是不求有功，但求无过。 |
| 2. | Diamond core drilling equipment wire line system
金刚石绳索取心钻探钻具设备 |
| 3. | Diamond core drilling equipment - wire line system
金刚石绳索取心钻探钻具设备 |
| 4. | Technology procedure for sidewall coring of impact
撞击式井壁取心技术规程 |
| 5. | The efficient path to raise wire - line drilling efficiency
提高绳索取心钻进效率的有效途径 |
| 6. | Technological requirement of coring data of development wells
油田开发井取心资料技术要求 |
| 7. | Diamond drilling bits and diamond core bits
金刚石钻头及金刚石取心钻头 |
| 8. | Polycrystalline diamond compact non - core bit
金刚石复合片不取心钻头 |
| 9. | Application of coring technology for ultradeep well in well tashen
超深井取心技术在塔深1井的应用 |
| 10. | Polycrystalline diamond compact core bit
金刚石复合片取心钻头 |
