• They thought that if the Earth itself was moving, there would have to be a constant wind blowing, sweeping them off their feet, and of course there wasn't.

    他们认为如果地球运动的话那么会有不断吹来,把他们倒——当然了,这种风并不存在

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  • Yi youth volunteers, constant wind and frost.

    益重青春风霜不渝。——李隆基基。

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  • In addition, a new method to translate from variable wind to constant wind is also presented.

    此外本文提出一种新的弹道风生成方法

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  • In the case of constant wind, the simulated results can accurately reproduce the spectrum and wave growth relation on which the proposed model is based.

    风速情形中,模拟结果精确地化为建立模拟根据风浪成长关系

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  • Fred Ferguson, a Canadian engineer specialising in airships, has designed a wind turbine that will use the constant winds that exist at 1, 000 feet to produce renewable energy.

    加拿大工程师弗瑞德·费格斯(FredFerguson)是飞船专家,他设计了一个风能涡轮机利用1 000英尺高空持续不断气流生成可再生能源

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  • This paper analyses the trajectory of GPS automatics homing system in constant wind fields , and discusses the condition under which the gliding parachute system could reach preassigned location.

    研究了全球卫星定位系统( GPS)自动归航系统恒定中归航轨迹的计算,探讨了系统能够达到预定目标点的条件,给出系统在几种变化风场中的轨迹图。

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  • AbuBakr Bahaj, in charge of the Southampton research, said: The prospects for energy from tidal currents are far better than from wind because the flows of water are predictable and constant.

    负责南安普顿研究AbuBakr Bahaj潮汐能源前景风能要好得多,因为水流可预测恒定的。

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  • The batteries will enable a constant electrical output from sources such as wind or solar, which stop generating when the weather changes or night falls.

    电池可以利用诸如风力太阳能之类来源提供源源不断电能即使天气改变夜晚奖励的时候不能再生成电能。

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  • When he plugged that wind-force equation into his model and assumed that the probability of a branch breaking due to wind stress is constant, he came up with Leonardo's rule.

    风力公式应用模型中,假定树枝受到风力作用而断裂概率恒定不变的,据此他推导出了达·芬奇公式。

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  • Yet since wind and solar power are intermittent and other technologies are still experimental, a constant source of low-carbon electricity will also be needed.

    然而由于风能太阳能具有间歇性的特点,并且当前其他技术处于试验阶段,所以稳定持续的低碳电力来源急缺。

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  • More severe cases may be treated with a CPAP machine, so named because they maintain constant positive air pressure to the wind pipe to help users breathe easy at night.

    严重一点患者可能就得用CPAP来治疗,人们给它取这个名字是因为能够气管提供稳定空气压力,借以帮助患者在夜间呼吸

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  • If you live life feeling like God owes you an explanation, you will only wind up in a constant state of bitterness because God doesn't owe you anything.

    如果认为一个解释,你终日生活痛苦之中因为主从不曾你任何东西。

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  • Listening to the distant wind response, the wings of dream chasing, no change in the Constant ancient mythology of the country to find happiness.

    遥远回响,翅膀不变神话里寻找幸福国度

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  • The clients' small lot backs up to a preserve, where the forms of windswept trees and dunes record the intensity and direction of the constant coastal wind.

    业主在一定程度支持维持地块现状,从沙丘形状就能看出海风强度方向

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  • A variable speed constant frequency wind power generation system of doubly-fed induction generator based on converter excitation was described.

    建立基于变换器励磁的感应电机的变速风力发电功率控制系统的模型。

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  • The low-frequency instability in variable speed constant frequency doubly fed induction generator(DFIG) widely used in wind power generation is investigated.

    研究了广泛应用于风力发电变速双馈感应电机系统中的低频不稳定现象

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  • The decoupled control of active power and reactive power is a key technology of variable speed constant frequency (VSCF) wind energy generation system.

    发电机有功无功功率控制变速(VSCF)风力发电系统关键技术

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  • In recent years, the variable speed constant frequency wind generator system is the most widely question for discussion at home and abroad, especially for doubly-fed induction.

    变速风力发电系统近年国内外研究广泛课题,其中最具代表性的是绕线式转子双异步发电系统。

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  • The stator flux-oriented vector controlling strategies of keeping stator frequency constant and capturing the maximum wind power are verified by experiment results.

    实验结果验证定子磁链定向矢量控制策略能保证定子输出频率恒定,又能好地跟踪风力机的大功率输出。

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  • The angular facade functions as an effective wind breaker, mitigating the constant strong wind blowing from the sea as well as affording a certain amount of privacy to each apartment.

    角形外观可以有效防风,减弱海上吹来持续强风的作用,同时各个公寓提供一定程度隐私

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  • This paper introduces the control method for the Wind Turbine Units of constant speed constant frequency and variable speed constant frequency.

    文章介绍了变速恒频并网型风力发电机组控制方法

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  • In order to meet the constant power control requirements of wind turbines, the wind turbine model was linearized at the operation points, thus variable pitch PID control of wind turbines is achieved.

    为了满足风力发电机功率控制要求,对其模型运行工作点处进行了线性化处理,从而实现了风力发电机变桨距PID控制。

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  • Twin stator brushless doubly fed machine generation system which has no electrical brush and can running in variable speed and constant frequency condition is very suitable for wind power generation.

    定子发电机具有无刷化进行变速频发的特点,非常适合风力发电系统,对发电系统的研究,将使这种新型电机能够尽快地应用于实际之中。

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  • The wind speed and its gradient varied with a fan outlet area change at a constant flux.

    相同流量下,改变风机出风口的大小,可以得到不同的出口风速梯度

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  • The design and manufacture for MW-class AC-excited doubly-fed generator is very important in the variable speed constant frequency doubly-fed wind power system.

    变速风电机组中,交流励磁双馈风力发电机设计制造技术十分关键的。

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  • Finally this article analyzed the mathematical model of wind turbine, compared to the current different types of variable speed constant frequency wind power systems.

    最后分析风力数学模型对比目前采用的不同类型变速风力发电系统

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  • Finally this article analyzed the mathematical model of wind turbine, compared to the current different types of variable speed constant frequency wind power systems.

    最后分析风力数学模型对比目前采用的不同类型变速风力发电系统

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