| 1. | The optimization design model of channel dimensions
航道挖槽尺寸的优化设计模型 |
| 2. | Therefore the optimized dredging length is about 10km
据此，挖槽长度的优化值约为10km 。 |
| 3. | The effect of dredging channel for deposition reduction is related to dredged channel geometry morphology and dredged channel area
挖河减淤效果与挖槽几何形态及挖槽面积有关。 |
| 4. | Results show that threshold voltage uniformity of mesfet fabricated in planar selectively implanted process is better than that of in recessed - gate process
结果表明，采用平面工艺制备的gaasmesfet阈值电压均匀性比采用挖槽工艺制备的gaasmesfet阈值电压均匀性更好。 |
| 5. | The author also synthetically analyzed each effect factor on dredging , concluded several relationships between dredging dimensions and efficiency as formulae 7 - 1 . 7 - 2 and 7 - 3
通过对各挖槽影响因素的综合分析，得到了式7 - 1 、 7 - 2 、 7 - 3等疏浚挖槽尺寸与挖槽效果的关系。 |
| 6. | Based on the appraisal of three kinds of means that reflect the effect of dredging , proposed several judging indexes ( such as dredging efficiency ) to estimate excavating results
在评述疏浚挖槽效果指标的基础上，提出了挖槽效率减淤指标等概念，为科学的判断挖槽效果奠定了基础。 |
| 7. | In order to study the influence of different process on the threshold voltage uniformity , gaas mesfets are fabricated both in recessed - gate process and planar selectively implanted process
分别对采用隔离注入挖槽工艺和平面选择离子注入自隔离工艺制备的gaasmesfet阈值电压均匀性进行了比较研究。 |
| 8. | The influence of different process on gaas mesfet sidegating effect has been studied . these process include recessed - gate process , planar selectively implanted process and planar boron implanted process
本文对分别采用隔离注入挖槽、平面自隔离和平面离子注入隔离三种工艺制备的gaasmesfet旁栅效应进行了研究。 |
| 9. | The bulk of effect on dredging river for deposition reduction is relative to chosen datum of dredging channel geometry parameter . geometry parameters include dredging channel length , morphology of transversal section and longitudinal slopes
挖河减淤效果的大小与挖槽几何参数的选值有关，几何参数包括挖河长度、断面形态及挖槽比降等。 |
| 10. | In order to reduce the re - deposit volume of the dredged channel , the method must be based on decreasing the oncoming sediment , changing the mouth site , builting the sediment control dam and raising the reservoir level
为了最大限度地减小疏浚挖槽的回淤量，必须依靠控制上游来沙量、调整入水口门位置、加设防淤堤及提高库水位等手段，而不能通过调整挖泥槽宽度、位置及数量等措施来达到目的。 |
