They have many interesting physical properties, such as symmetric band structure, strong temperature dependences of energy gaps, absence of a heavy hole band, and low Auger recombination rates, etc.
它们具有很多独特的物理性质：对称的能带结构、强烈依赖于温度的带隙、一个重空穴带的缺失、低的俄歇复合率等。
He had obviously decided that Whitewater was a dry hole and this was a graceful way out, but he received heavy criticism for his decision.
他已很清楚地看到白水事件是口干井，去佩珀代因大学会是个体面的退出方式，但他的这个决定遭到了强烈谴责。
Early in the morning, a peasant came along and saw him, he went out onto the ice and hammered a hole in it with his heavy wooden shoe, and carried the duckling home to his wife.
大清早，有一个农民走过来，看见他，他出去走上冰面，并敲定了它与他那沉重的木屐孔，并进行小鸭子回家，送给他的妻子。
But first the Rat went into his hole, and after a while came out carrying a very large and heavy lunch basket.
但是水鼠先回到了洞里，一会儿又出来了，提着一只又大又沉的午餐篮。
Fine grinding, polishing, grinding, heavy grinding, light flash purify, the deep hole processing, alloy processing after grinding all kinds professional brush brush.
精细研磨，抛光，轻研磨，重研磨，毛边去除，深孔加工，合金加工后刷磨等各式各样专业刷。
As long as the part isn't too heavy and there is a good hidden spot to drill the hole this method works well.
只要部分不是太沉重，有一个很好的隐蔽的地方钻洞，此方法效果良好。
The heavy drilling apparatus was blown sky high out of the hole with a tremendous roar.
那沉重的钻井设备随着一声惊人的怒吼，脱离井口，飞向高空。
After using this kind of connection equipment for some time, heavy wear was found at pan and the suspending pan hole.
某钢厂转炉炉壳与托圈的联接方式初始设计为悬盘联接，该种联接装置使用一段时间后发现悬盘及悬盘孔的磨损较为严重。
What we have done in this paper is of great significance in designing the heavy rock drill to drill deep and large diameter hole.
为大孔径深孔凿岩的重型液压凿岩机的研究与研发打下理论和实践基础。
The big ear hole: the older woman has the big ear hole probably because she has the heavy earrings from her childhood.
大耳洞或许是从小就带很重的耳环，看年龄较大的妇女的耳朵都会有大大的耳洞。
Cat was sweating and out of breath. Her heavy coat was ripped. The hat on her head had a hole in it.
猫大汗淋漓，气喘吁吁。她的厚大衣撕破了。她头上的帽子破了一个洞。
The first experimental of recovery heavy oil using down-hole catalytic method was described in this paper.
介绍了国内首次井下催化降粘开采稠油的现场试验。
The heavy and light hole excitonic transition structures 11H, 22H, 33H and 11L were observed and the theoretical calculations , including the strain effects, were performed.
观测到11H、22H、33H和11L等激子跃迁结构。 计及晶格失配导致的应力效应，对子能级结构进行了理论计算。
Heavy torque and abrasion on casing are serious problems in drilling in slim hole.
高钻柱扭矩和套管过度磨损是小井眼钻井中存在的严重问题。
The oil giant then tried to shoot heavy drilling mud into the hole to hold down the flow so it could then insert a cement plug.
这个石油巨头后来尝试向裂口中喷入比重高的钻探泥浆，企图堵住外流的原油，然后用一个水泥塞子堵住缺口。
It has been analysed the causes for the heavy surface spalling of back-up roll for a finishing mill. The result shows that the main causes are gas hole, shrinkage and bad heat treatment.
对连轧机精轧支承辊大面积剥落的原因进行了深入的分析，结果表明，轧辊内部的缩孔、气泡及热处理不当是造成轧辊表面剥落的主要原因。
Cleanout hole series can be set at the cornet from the bottom tank shell course to the bottom of the heavy oil storage tank for cleaning and draining during maintenance.
清扫孔装于重质油罐底部、清扫孔油罐可放出污水扫除内污泥。
The results provided theoretical basis for down-hole catalytic upgrading of heavy oil.
以钼酸铵作为稠油水 热 裂解反应的催化剂。
The results provided theoretical basis for down-hole catalytic upgrading of heavy oil.
以钼酸铵作为稠油水 热 裂解反应的催化剂。
应用推荐