真空

If you ask a physicist how long it would take for a marble to fall from the top of a ten-story building, she will answer the question by assuming that the marble falls in a vacuum.

如果你问物理学家一个弹球从十层高的建筑物的顶部掉到地上所用的时间是多长，她的回答将会是假定弹球是在真空中下落的结果。

The results show that a diffusional transformation takes place when the alloy is heated over 850 ℃ for a long time, and a new precipitation3 Ti with an hcp structure can he found.

结果表明，非真空热处理、真空热处理这两种热处理方式的最大回复应力σr^m变化不大，而冷拔态下合金的最大回复应力值σr^m远远高于其他两种状态的回复应力。

Results of experimental research on diamond surface metallization with electrolyse plating and vacuum plating show that strength, thermal stability and penetration rate of metallized diamond are much better than that of nonmetallilized diamond, and performances of diamond plated with Ti are the best among all plated diamonds.

利用化学镀和真空镀 2种方法对金刚石表面进行金属化处理的试验研究结果表明，镀膜金刚石较未镀膜金刚石的抗压强度、热稳定性等性能和碎岩效果均有很大提高，其中真空镀Ti的效果最好。

To do calculations, we must specify a unique vacumm above which excitations are analizedfor dynamics.

当我们做计算的时候，必须要选定一个特定的真空，分析和计算这个真空上的激发态。

A fixed spool is set within the upper opening of the tubular body and connects the air supply tube to an air jet pipe while controlling the flowing direction of compressed air.

一个在上孔中的固定阀柱把供气管连接到空气喷管上而控制空气流向；一个在下孔内部的真空阀门两端安装一个脏物抽吸嘴和一个脏物排除嘴，并让两嘴互相连通，用压缩空气为两个嘴内部抽真空。

The spectral structure of spontaneous emission of copper atom at 510.6nm and 578.2nm was calculated considering the hyperfine structure of energy levels and the isotope shift.

真空系统的扩散泵可把激光管抽至10-2Pa的真空度，排除杂质使激光工作更稳定，可控制充入氖气的气压。

The structure and feature of WZDQ30C vacuum furnace for pressed gas quenching was introduced in this paper.

简要介绍了WZDQ30C型真空加压气淬炉的结构及其特点，总结了在调试过程中的一些体会，对典型软磁材料进行了真空热处理并测定了热处理后的磁性能。

To analyzing the relativity between venipuncture velocity blood collection with Vacuette and venipuncture of difficulty above using CORREL.

用秒表测量509例次真空采血从进针到插入真空管见到回血的时间并记录，评价静脉穿刺难度，应用CORREL工作表函数相关系数对真空采血器静脉采血穿刺时间和穿刺难度进行相关性分析。

The departure of Alexander from India caused a power vacuum into which stepped Chandragupta Maurya, an adventurer from a low-caste family.

亚历山大的军队撤离印度之后，留下了一个权力的真空。出生低微的冒险家旃陀罗笈多步人了这个真空带。

These facts conflicted with current theory and were not explained until 1905, when Einstein produced his quantitative law and developed the theory of quanta of light or photons, which was verified much later by Millikan.

此后，莱纳德又继续拓展赫兹关于光电效应的研究，他分析了在高真空环境下光电效应的特性和本质，证明了当紫外线照射在金属上时，会使电子从金属表面逸出，并在真空中传播，电子在电场中被加速或减速，电子轨迹在磁场中改变。通过精确的实验，他证明发射的电子数量正比于入射光所带的能量，而电子的速度，或者说它们的动能，却与入射光能量无关，当入射光的波长减小时，电子速度增大。这个事实与当时的理论是相冲突的，经典物理学无法解释莱纳德的光电效应实验结果。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。