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- A ride in the lunar module's upper stage was quite an experience. 在登月舱上半截的一次驾驶，可真是一次难得的经验。
- Unpiloted and looking rather like a large, fat fighter aeroplane, it is launched from a converted Boeing 747. Having released the upper stage at about one half satellite speed, the rocket-powered lower stage glides back to base and lands. X-34无人驾驶，外观更像一个庞大的战斗机，它从一个经过改造的波音747飞机上发射，当以约为卫星的一半速度释放上部一级火箭后，采用火箭发动机驱动的下部一级火箭就滑降回基地并着陆。
- At the upper stage, windows are recessed into the quadripartite vault ceiling. 在上一阶段，窗子被放在四分拱顶天花板的凹处。
- Glenn is leading the design and development of the rocket's payload shroud and several subsystems on the upper stage. 格伦因主持设计建造了火箭整流罩和几个主要子系统而（在火箭史上）著名。
- Between pairing marriage and monogamy intervenes a period in the upper stage of barbarism when men have female slaves at their command and polygamy is practiced. 在野蛮时代高级阶段，在对偶婚制和一夫一妻制之间，插入了男子对女奴隶的统治和多妻制。
- The upper stage was able to reach then-record altitudes of almost 400 kilometers, higher than even modern Space Shuttles fly today. 上层火箭可以到达海拔400公里的高度，这是当时的纪录。甚至连现代航天飞机都不及。
- The upper stage mixing shaft, the cut reamer big shaft, the up-down body etc. are all passed the aging, quenching and tempering process. 上级搅拌轴、绞龙大轴以及机身上下体等，均经时效、调质、淬火处理；
- The Chinese side accepted the first cause,holding that it is the resonance of the satellite and the upper stage with the launch vehicle that caused the failure. 中方认定是第一种模式，认为是卫星、上面级与火箭产生共振，导致失败。
- The Chinese side accepted the first cause, holding that it is the resonance of the satellite and the upper stage with the launch vehicle that caused the failure. 中方认定是第一种模式，认为是卫星、上面级与火箭产生共振，导致失败；
- The predevelopment phase for the injector of a new 27.5kN engine, which will be used in the Ariane 5 upper stage and the Hermes spaceplane propulsion module, has been completed. 欧洲阿里安-5运载火箭的上面级和使神号航天飞机的推进装置将使用一种真空推力为27.;5千牛的发动机;这种压力输送式发动机的预研工作已经结束。
- Under the shear wind aloft conditions in the winter season,the resonance exerted due to the unique interface of the satellite and the upper stage with the launch vehicle caused local structural damage to the satellite. 在冬季高空切变风条件下，卫星、上面级与运载火箭的特殊联结方式出现谐振，造成卫星局部结构破坏。
- Fabrication process analysis for nano-positioning stage based on silicon bulk micromachining[J]. 引用该论文 王家畴;荣伟彬;李昕欣;孙立宁.
- Whether pairing marriage has completely supplanted group marriage in America today is a question to be decided by closer investigation among the peoples still at the upper stage of savagery in the northwest, and particularly in South America. 要弄清现在美洲的群婚是否已完全被对偶婚所排除的问题，必须更加仔细地研究一下还处于蒙昧时代高级阶段的西北部民族﹑特别是南美的各民族。
- The first beginnings of the pairing family appear on the dividing line between savagery and barbarism; they are generally to be found already at the upper stage of savagery, but occasionally not until the lower stage of barbarism. 对偶家庭产生于蒙昧时代和野蛮时代交替的时期，大部分是在蒙昧时代高级阶段，只有个别地方是在野蛮时代低级阶段。
- The influence of flexure hinges on the static and dynamic performance of micro-feed stage based on finite element methods is analyzed. 用有限元方法系统的分析了铰链的各个几何参数对工作台的静、动态特性的影响。
- The next step leads us to the upper stage of barbarism, the period when all civilized peoples have their Heroic Age: the age of the iron sword, but also of the iron plowshare and ax. 下一步把我们引向野蛮时代高级阶段，一切文化民族都在这个时期经历了自己的英雄时代：铁剑时代，但同时也是铁犁和铁斧的时代。
- Arising in the middle stage of savagery, further developed during its upper stage, the gens reaches its most flourishing period, so far as our sources enable us to judge, during the lower stage of barbarism. 氏族在蒙昧时代中级阶段发生，在高级阶段继续发展起来，就我们现有的资料来判断，到了野蛮时代低级阶段，它便达到了全盛时代。
- It is located in the west fl ank of the Panxi rift, but the REE mineralization was developed in the postrift stage based on the isotopic ages and the geological environment. 四川牦牛坪矿床是世界上最大的稀土矿床之一,该矿床位于攀西裂谷西缘,同位素年龄表明稀土矿化发育于裂谷期后阶段。
- The tribes in the northwest, particularly those in the region of the Columbia River, were still at the upper stage of savagery and acquainted neither with pottery nor with any form of horticulture. 西北各部落，特别是住在哥伦比亚河流域的各部落，尚处于蒙昧时代高级阶段，他们既不知道陶器的制造，也不知道任何植物的种植。
- In this paper,the configuration,driven and control strategy of the precise scanning stage based on DC-MIKE actuator used in biochip scanner are presented. 本文详细介绍了基于DC-MIKE Actuator用于生物芯片检测仪的精密扫描平台的机械结构,驱动、控制方法。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
