Based on the traditional Momentum-Blade Element theory, an improved method of aerodynamic calculation about the horizontal axis wind turbine in yaw or in pitch-up is presented in this paper.
本文将动量-叶素理论推广应用于计算水平轴风车叶轮有侧偏角或上仰角时的气动力。
He keyed the piano up to a concert pitch.
他把钢琴的音调调到了音乐会要求的音高标准。
A vibration that has a higher or lower frequency than a sound, he found, tends to skew pitch perception up or down.
频率超过或低于声音频率的震动会分别引起音高知觉的上调和下调。
I always used green paper, and recorded each game pitch by pitch, using an elaborate code I made up.
我总是使用绿纸,按照我精心编制的代码,把每场比赛每次投球一笔一笔全都记录下来。
The clear, pure light of the morning made me long for the truth in my heart, which alone could make me pure and clear as the morning, tune me up to the concert-pitch of the nature around me.
早晨的纯洁之光,使我的心渴慕真理,惟有这种仰望真理之心,能使我纯洁如早晨,使我和周围的自然交响乐和谐合拍起来。
The main blades pitch Angle is controlled by the up and down movements of the swashplate.
大桨的螺距角度是由倾斜盘的上升和下降动作控制的。
But I think my fitness is good and I can get up and down the pitch.
但我觉得自己的身体状况还不错,我可以在场上跑上跑下。
She has keyed the piano up to concert pitch.
她已经把钢琴的音调升到音乐会的音高标准。
It's up to us to show it on the pitch, but we didn't show it in the first half.
我们的强大需要在比赛中表现出来,但是上半时我们没能做到。
ELEVATOR, a hinged moveable part on the trailing edge of the horizontal stabilizer for airplane pitch (nose up and nose down) control.
升降舵,铰连在水平安定面后缘上的可动部件。用以操纵飞机的俯仰运动(机头朝上及朝下)。
The experimental results show that the maximum lift coefficient Cy max and stall incidence are increased with increased pitch up rate, when the wing is rapidly pitching up.
结果表明:机翼快速上仰时,随上仰速率增大最大升力系数增高,即动态升力效应更明显;
Who can watch a pitch slightly longer before swinging, make up for the lost time with a faster swing and achieve more solid contact more often.
他们在挥棒之前能稍微多观察投球一段时间,然后用更快的挥棒速度来弥补时间损失,从而能更频繁地稳定击球。
We have to set the example on the pitch and show that we never give up.
我们得在场上树立榜样,表现出我们从未放弃。
I quickly discovered just how addicting it was to brainstorm about cutting edge technologies, write up our ideas, and pitch them to our company's patent review boards.
大家在一起畅谈尖端技术,记录我们的想法,并将这些想法兜售给公司的专利评审委员会,我很快便发现,这种活动令我痴迷。
Please ask the singer to pitch the song up a little, they sound rather flat.
请歌手把调子唱高一点,他们唱的调子太低了点。
Then I heard a man giving a demonstration of Indian vocal music, and his pitch was so perfect, I went rushing up to him afterwards to ask how he did it.
有一天,我听到一个人在示范演唱印度歌曲。他的高音真的是棒极了,然后我就马上冲过去问他是怎样做到的。
Around the size of a domestic cat, it creeps around the rainforests of Madagascar, drumming its fingers on tree trunks - up to 40 times a minute - listening for subtle variations in pitch.
指猴有家猫大小,爬行在马达加斯加的热带雨林附近,用手指在树干上发出击鼓声——高达每分钟40次——同时倾听音准的微妙变化。
Thee cat from the Dong family saw the rat in the jar stick up its pointed ears, stare with a pair of pitch-black eyes, shake its red whiskers and squeak.
东家的猫看到瓮中的老鼠,竖着两只尖尖的耳朵,瞪着一双漆黑的眼睛,抖动着红红的胡须,吱吱吱乱叫。
"If you take a balloon and blow it up, you can manipulate the pitch by pulling the neck," Wilson says.
“如果你把一个气球吹起来以后,再拉长气球的脖子,就可以操纵音调,”威尔逊说。
Proponents of the 2009 measure argued it would inject much-needed liquidity into the markets — a pitch that's lost its urgency as Banks have loosened up on lending.
那些支持2009年议案的人主张,这项议案会为美国市场注入急需的流动性——不过随着银行放松借贷,这个理由已经不太适用。
After dinner we both pitch in and clean up the kitchen and clear off the table.
晚饭后老公和我一起清理厨房和擦洗餐桌。
According to the pitch, 80legs makes use of the Plura system and can crawl up to two billion pages a day using a 50,000 node supercomputer.
根据公司自己的介绍,80legs利用了Plura系统,动用了5万个节点的超级计算机,每天能抓取20亿个页面。
"We often put up an inflatable five-a-side football pitch or set up netball courts and we're having a climbing wall in soon," says Kate Olsen, events manager.
“我们经常会搭一个五人制充气足球场或蓝网球(netball)场。不久后,我们还会有一面攀岩墙,”活动经理凯特·奥尔森(Kate Olsen)表示。
Our teacher's birthday is coming up, we should all pitch in and buy her a gift basket full of special treats.
我们老师的生日快到了,我们都应该凑点钱,买个装满了各种特别礼物的礼物篮送给她。
Several other start-up entrepreneurs have indicated that they would prefer to pitch their ideas through a presentation that doesn't include an actual business plan.
很多创业家都表明他们更愿意通过一份不包括实际商业计划的陈述来表达他们的想法。
Several other start-up entrepreneurs have indicated that they would prefer to pitch their ideas through a presentation that doesn't include an actual business plan.
很多创业家都表明他们更愿意通过一份不包括实际商业计划的陈述来表达他们的想法。
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