| 1. | Preloading mound reclamation works 预压层填海工程 |
| 2. | A new structure of igbt has been discussed in detail in this thesis 本文对一种具有新型耐压层结构的igbt做了详细论述。 |
| 3. | 5 . the press mechanism for side lasting is equipped with special locking to ensure the press effect and to avoid shrinkages after lasting 5 .中帮压紧机构附有特殊设计之锁扣片,可确保压层之效果,不会产生往后缩之现象。 |
| 4. | The firm ' s website of guangzhou xingguan chemical co . , ltd . contains more statements to office buildings in addition to surface treatment 的市场部门竭诚欢迎潜在客户垂询压层机、层和机、表层涂层或胶印范围内的任何问题。 |
| 5. | Industrial rigid round laminated tubes and rods based on thermosetting resins for electrical purposes - part 2 : methods of test iec 61212 - 2 : 1995 ; german version en 61212 - 2 : 1996 电工用基于热固树脂的工业型刚性压层圆管和棒材.第2 |
| 6. | It has an extra heavy coating of fluon or teflon and is employed for special applications requiring a super - smooth surface , such as laminate - release sheets and other specialised heat sealing and non - stick applications 含多层的ptfe ,多应用于需要表面特别光滑的工业,例如,碾压层板工业、热杆等。 |
| 7. | In the new structure , a n + buffer layer is introduced into the bulk silicon substrate with a triple - diffusion process . . the new structure has two features : one is the feature of npt - igbt : the thin and lightly - doped p + layer and the high lifetimes of the carriers ; the other is the feature of pt - igbt : n7n + structure which can make the n " region very thin 新结构用三重扩散的方法在n ~ -单晶片上引入了n ~ +缓冲层,仍然保留了npt - igbt中薄而轻掺杂p层和高载流子寿命的本质优点,同时又具有pt - igbt中n ~ - ( n ~ + )双层复合的薄耐压层(即薄基区)的优点。 |
| 8. | Pressure prediction results demonstrated that the 1st and 2nd intervals of shahejie formation are generally over - pressured . the author believes that the pressure data can be served as an important parameter for the evaluation of seal - property of faults . different faults , even different parts of same fault do have different seal - properties 压力预测结果表明,沙一、二段具有整体明显的相对超压特征,这一方面表明沙一、二段本身保存条件比较好,有利于沙一、二段油气藏的形成与保存;另一方面,超压层的形成可以有效阻止下覆油气层的散失。 |
| 9. | The vertical structure optimization through simulation of the new structure , low loss igbt ( lpl - igbt ) has been discussed in detail in this paper . in comparison with the prevalent igbt , lpl - igbt has not only the merit of transparent back emitter and high lifetime of carriers owned by npt - igbt but also the complex n7n + voltage sustain layer structure owned by pt - igbt . not only possesses lpl - igbt lower power loss but also the other capacities are no better than npt - igbt such as break down voltage , current capacities , safe operation area and cost 与现有igbt相比较, lpl - igbt在结构上保留了npt - igbt中的透明发射区和高载流子寿命的本质优点,同时又具有pt - igbt中n ~ - n ~ +复合薄耐压层的优点;在器件性能上, lpl - igbt不仅具有比npt - igbt更低的能量损耗(包括通态损耗和开关损耗) ,而且其余性能如器件耐压、电流密度、安全工作区以及制造成本等相对现有npt - igbt均有明显改善。 |
| 10. | Built up numerical simulation model of ufad system with single heat and pollutant source , adopted fluent software to study distribution of temperature 、 velocity and contamination ’ concentration , and changes of heat lamination height when temperature and velocity of air - in and surface temperature of heat source were changed and when the leakage of air - in plenum was considered or not . and compared and verified the simulation results with experimental testing data 建立了单一热污染源地板送风的数值模拟模型,采用fluent软件研究送风温度、送风速度、热源表面温度的变化及有无考虑送风静压层的漏风时,室内温度、速度和污染物浓度分布以及热力分层高度的变化,并与实测分析进行了对比验证。 |