查询词典 F-22

This p a per introduces a method of the electronic be a m flow controlling of the electron be a m welding m a chine by using V/F a nd F/V converter.

介绍把V/F及F/V转换器作为电子束焊机束流控制方式的研究，实现了焊接束流的快速控制，提高了电子束流的稳定性及可靠性。

His piano works, Ballade in A flat major and Scherzo in E major were interpreted by Helen Huang, Ballade in F major and Mazurkas by Fou Ts'ong; two Piano Concertos in E minor and F minor were performed by Martha Argerich with the China National Symphony Orchestra conducted by Chen Zuohuang.

黄海伦以及傅聪分别演绎了他的钢琴作品&降A大调随想曲&、&E大调谐谑曲&和&F大调随想曲&以及&马祖卡&；玛尔塔·阿格里奇同陈佐煌指挥的中国国家交响乐团合作演出了肖邦的E大调和F小调钢琴协奏曲。

Pagani Zonda C12 F $667,321 Produced by a small independent company in Italy, the Pagani Zonda C12 F is the 8th fastest car in the world.

帕格尼风之子十二F 667321美元产生一个小的独立公司在意大利的帕格尼风之子十二F是第8次最快的赛车世界。

Rho designates density, f is the mass fraction, and subscripts o and f refer to oxidizer and fuel , respectively.

指定的密度， F是质量分数，并标o和F是指氧化剂和燃料，分别。

These earliest F-16s are recognizable in photos by their black radomes and lack of threat warning receiver fairing protruding aft and just below the rudder in production F-16s.

可以根据照片上的黑色雷达天线罩以及缺少生产型F-16后机身上方向舵下方非常显眼的威胁警告接收器识别出这些最早的F-16。

A US Air Force B-52 Stratofortress leads a formation of two F-16 Fighting Falcons, two Japan Air Self-Defense Force F-2 attack fighters, two US Navy EA-6B Prowlers and an E-2C Hawkeye over Guam during Exercise Cope North, Feb.

美国空军的B - 52同温层堡垒导致对抗演习中的两架F - 16战隼，两个日本航空自卫队的F - 2战斗机攻击，两名美国海军EA - 6B型徘徊者和1架E - 2C鹰眼形成对关岛北，2010年2月15号。

I presented some diagrams of efficiency of a coffee can with different diameters as feeds for parabolas with different F/D and it is very clear how efficiently they work with offset dishes whose F/D is in the range 0.7-0.9.

我提供一些不同直径的咖啡罐做不同F/D的抛物面的馈源的效率图表，可以清楚的看出，当偏馈抛物面天线的F/D在0.7-0.9范围时，它们的工作效率如何。

The lowest Fst value shows that less genetic variations exist among population of F.gracilipes whic is close to panmictic There is almost no genetic differentiation between populations of F.statice . Genetic similarity is 55.3%~ 65.2% between species of F.tataricum and its related species, which is close to the average level among species in seed plants.

这些种的近交繁育系数 F 值-0.54～-0.80，为随机交配的居群，杂合体过多；营养繁殖为主的金荞麦的FST值最高，相对较多的遗传多样性存在于居群间，长柄野荞麦相对较少的遗传多样性存在于居群间，更接近于自由交配。

The next development in musical notation were "heighted neumes", in which neumes were carefully placed at different heights in relation to each other. This allowed the neumes to roughly indicate the size of a given interval as well as the direction. This quickly led to one or two lines, each representing a particular note, being place on the music with all the neumes relating back to them. At first these lines had no particular meaning and instead had a letter placed at the beginning indicating which note was represented. However, slowly the lines indicating middle C, and the F a fifth below, became most common. Having at first been merely scratched on the parchment, the lines now were drawn in two different colorded ink: usually red for F, and yellow or green for C.

音乐记谱法的再一次新发展是heighted neumes，这种记谱法标识出音符之间的音高关系，这样就使得纽姆谱可以粗略并直接地标记出指定音程的增减，这样的标识方法导致了谱上一线或者二线的出现，每条线代表一个特定的音符，这个音符与纽姆谱中所有的音符的音程关系都能被标识出来，最初这些线并没有什么特殊的含义，反而会有一个字母被放在开始的位置表明代表哪个音符，渐渐的，线代表中央C或者比C低五度的F 变得最常用，这些一开始只不过在羊皮纸上刮出的线，开始用两种不同的颜色书写，红色代表F，黄线或者绿线代表C，以上的这些便是我们所知道的音乐记谱法发展的开端。

Based on the given probability distribution of a system mode, the F-discrepancy or quasi F-discrepancy representative points and the mean square error representative points representing the probability distribution of system mode are selected by means of number-theoretic method. The model-set used in a multiple-model approach is then constructed.

在已知系统模式的概率分布条件下，由数论方法获得代表其概率分布的F-偏差或伪F-偏差代表点和均方差代表点，利用这些代表点构成覆盖系统模式空间的模型集合。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。