The following results are given: A necessary condition of F space and a character of F subspace in linear order space;
主要结果有：给出了F空间判定的必要条件； 得到了线性序拓扑空间中的F子空间的刻画；
John Logsdon, the doyen of American space studies, takes a more generous view in his new book (" John F. Kennedy and the Race to the Moon ", Palgrave Macmillan).
美国空间研究元老，约翰劳杰斯特则在他的新书中提出了更大胆的观点(约翰·肯尼迪和登月竞赛，帕尔格雷夫·麦克米伦)。
F. Order advertising space, time or other means to be used for publication of Advertiser's advertisements, all time endeavoring to secure the most efficient and advantageous rates available.
预订用于广告商广告发布的空间，时间或其它方式，一直努力获得最有效的和最有利的费率。
F The phenomenon as a whole can only be seen in our mind, mainly as a play of light and shadows while moving in space.
作为一个整体现象，只能被视为在我们的脑海主要是由于光线和阴影作用，而在空间中移动。
The L F signals are transformed by entropy based on wavelet packet algorithms for best basis selection, and the results are displayed in time- frequency space namely phase plane.
该方法采用基于熵的小波包最佳基选取准则，对局部损伤信号进行自适应小波包分解，将分解结果显示于时—频空间即相平面上。
The matric characteristics and convergences on F-number space are investigated.
探讨了F数空间的度量特征及几种收敛性的关系。
Amazon founder Jeff Bezos says he has located the long-submerged F-1 engines that blasted the Apollo 11 Moon mission into space.
亚马逊创始人杰夫·贝索斯称，他找到了长久以来沉入水底的、将阿波罗11号月亮探测器送入太空的火箭发动机f - 1。
It will be launched vertically from remodeled Apollo pads at the John f. Kennedy space center at cape canaveral, fla.
它将在佛罗里达州长纳维拉尔角肯尼迪空间中心从改进过的阿波罗发射架垂直发射。
So the library building should create a peaceful and cordial environmental space connecting nature with humanity f…
着意于创造一种既幽静又亲切，既与自然相通又与人情相交，使读者可全身心投入的环境空间。
Igneous topazites found recently in South China are closely associated with F-rich granites in time and space.
新近在华南发现的黄英岩与富氟花岗岩存在密切的时空联系。
This function generates a random string composed of letters a to f, Numbers and hyphens and unnecessarily restricts the key space, resulting in a weakening of the entropy.
该函数生成由字母a至f，数字和连字符组成的随机字符串，并且不必要地限制关键字空间，导致熵的削弱。
The frequency domain and space domain anti-stealth techniques of radars are summarized, and Fight F-117A is taken as a typical example in order to discuss the radar detectability of stealth vehicles.
本文综合论述雷达的频域反隐身与空域反隐身技术并以F- 117a飞机为例探讨了隐身飞行器的雷达可探测性。
The results show that the j and f factors increase with the fin space and fin length decreasing, and the fin space has more obvious effect on the area of optimization factor.
试验结果表明，新型开窗翅片的翅片间距对表面传热因子和阻力性能影响较为显著。
Google and Microsoft are part of a coalition of technology companies that has been lobbying the F. C. C. to allow unlicensed use of white-space spectrum.
谷歌和微软同时也是作为一些高科技公司集团的一员，它们一直在游说联邦通信委员会允许未申请执照就可以使用空白无线电频段。
Google and Microsoft are part of a coalition of technology companies that has been lobbying the F. C. C. to allow unlicensed use of white-space spectrum.
谷歌和微软同时也是作为一些高科技公司集团的一员，它们一直在游说联邦通信委员会允许未申请执照就可以使用空白无线电频段。
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