当前在高速公路小型构造物施工中,结构物外观越来越受到人们的重视,而施工中产生的拉杆孔洞会对箱通外观产生负面影响。
Nowadays, structure appearance becomes increasingly important to small structures of expressway, while the necessary strut for construction would have negative effect on underpass appearance.
一会儿,小李他们给我们送回一箱水,大家痛痛快快的喝了一通。
A while later, Xiao Li sent us back a box of water, and now we could a cattle drink.
举例来说,10月通过的提案有现金存储箱、对讲机和洗衣机。
Proposals for funding storage bins, walkie talkies, and laundry were all approved in October, for example.
双反射带通箱,由于它的导向孔在很大的频率范围内控制了锥盆动作,所以产生的失真最小,同时还表现出最好的功率承受特性。
The dual-reflex bandpass, due to the fact that its ports control cone motion over a wider range of frequencies, produces the least distortion and exhibits the best power-handling characteristics.
导向孔和双反射带通箱设计比密闭箱的失真更小一些,但是差别不大。
The ported box and the bandpass designs produce less distortion than the sealed box, but the difference is marginal.
通常来说,效率最高的箱体是两种窄带宽的带通箱设计,其中双反射版本会有小小的优势。
Generally speaking, the most efficient enclosures are the two narrow-bandwidth bandpass designs with the dual-reflex version having a slight edge.
从箱体阻尼损失来看,导向孔和双反射带通箱设计在极低频下比密封箱和单反射式带通箱设计有着更大的失真。
Related to the loss of enclosure damping, ported and dual-reflex bandpass designs also exhibit higher distortion levels at very low frequencies than sealed or single-reflex bandpass designs.
密闭箱和宽带单反射带通是效率最差的设计。
The sealed enclosure and the wide-bandwidth single-reflex bandpass are the least efficient designs.
采用窗函数法、频率抽样法和切比雪夫最佳一致逼近法,通过调用Matlab信号处理工具箱中的函数设计低通数字滤波器。
By using MATLAB signal and using window method, frequency sampling and Chebyshev approximation the design of low pass digital filter in the toolbox have been processed.
暖通空调(HVAC)系统中建立一套对各种水阀、风阀、变风量箱、电加热器、加湿器以及其他控制元件进行准确测量及时控制的数据采集控制系统。
Builds a suit of HVAC DAQ and control system which could take precise data acquisition and control water valve, air valve, VAV box, electrical heater, humidifier and other control elements.
运用MATLAB辨识工具箱和神经网络理论,通过对暖通空调系统中常见的时滞对象的辨识,研究了基于神经网络的线性和非线性的辨识方法。
Based on identifying the time-delay system of HVAC, the paper researches the linear and nonlinear systems identification methods with MATLAB system identification toolbox and neural network theory.
利用该方法对苏通大桥进行整体受力计算,得到钢箱梁板件的横桥向和顺桥向应力,分析了钢箱梁顶板应力在横桥向的不均匀性。
Mechanics behaviors of Sutong bridge were computed by this method, and longitudinal stress, transversal stress of plates of the girder and section stress distribution were discussed consequently.
对以苏通桥断面为例的桥梁闭口箱梁模型进行了三分力系数CFD数值识别。
Numerical identification of aerostatic force is conducted for Sutong Bridge section in CFD modeling.
结果:脑智通胶囊可减少穿梭箱实验大鼠电击次数、电击时间,同时提高脑组织SOD的活力。
Results of shuttle test and the activities of SOD in the cerebral issues were studied.
带宽相当窄的单反射式带通箱也有能够拥有好的瞬态特性,但是再次强调,不可能赶上最优化的密闭箱体。
Single-Reflex bandpass designs can also have good transient characteristics if their bandwidth is fairly narrow, but again, not as good as an optimized sealed enclosure.
发生事故的主要原因之一是过热器、再热器进口集箱引入三通处蒸汽在集箱中复杂流动工况下产生涡流,处在涡流区的管屏蒸汽流量减少,使汽温和金属壁温升高。
The main source of these failures are vortices existing, in front of Tee-Junctions of entering headers of superheaters and reheaters, caused by the complex flow conditions in the headers.
发生事故的主要原因之一是过热器、再热器进口集箱引入三通处蒸汽在集箱中复杂流动工况下产生涡流,处在涡流区的管屏蒸汽流量减少,使汽温和金属壁温升高。
The main source of these failures are vortices existing, in front of Tee-Junctions of entering headers of superheaters and reheaters, caused by the complex flow conditions in the headers.
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