| 1. | Pencils , coloured pencils and leads for them
铅笔彩色铅笔及所使用的铅芯 |
| 2. | Black leads for wood - cased pencils . classification and diameters
木质外体铅笔的石墨铅芯.分类和直径 |
| 3. | Flat - loop effect and hysteresis property of the rubber bearings
铅芯橡胶支座滞回曲线的扁环现象及其恢复力模型 |
| 4. | Effect of the lrb parameters on the dynamic response of isolated bridges
铅芯橡胶支座参数对隔震桥梁动力响应的影响 |
| 5. | Leads for mechanical pencils
自动铅笔的铅芯 |
| 6. | Plastic pen mechanical pencil
原子笔铅芯笔 |
| 7. | Application of lead core rubber support for vibration isolation in highway bridges
铅芯橡胶隔震支座在公路桥梁中的应用 |
| 8. | Mechanical pencils ; black leads , classification and dimensions ; identical with iso 9177 - 2 : 1989
活动铅笔.黑铅芯.分类和尺寸 |
| 9. | Black leads for wood - cased pencils ; classification and diameters ; identical with iso 9180 : 1988
木制铅笔的黑色铅芯.分类及直径 |
| 10. | Test research status quo and prospect of seismically isolated bridges with lead rubber bearing
铅芯橡胶支座桥梁隔震试验研究现状及展望 |
