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fixed    
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  固定
    A STUDY OF FACETED FIXED MIRROR SOLAR CONCENTRATOR DESIGN
    固定条形镜面聚光器设计的研究
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    Test Study on Biomass Gasification in Fixed Beds
    生物质固定床气化试验研究
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    THE EXPERIMENTAL STUDY ON THE MAIN TECHNICAL PERFORMANCE OF THE FIXED BED BIOMASS. GASIFICATION EQUIPMENT
    固定床生物质气化机组主要技术性能试验研究
    The experimental study on the main technical performance of the fixed bed biomass gasification equipment
    固定床生物质气化机组主要技术性能试验研究
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    It is different from the existing tracker which tracks the sun by the coordinates of declination-hour angle or of altitude-azimuth. It has more advantages for use, such as, small turned space, simple construction, and fixed foucs.
    它与现有的按时角和赤纬或者高度和方位坐标跟踪太阳的系统不同,具有占用转动空间小、结构简单以及焦点固定等优点。
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  固定的
    A new two-dimension automatic revolving platform is developed in the paper,and the flat fixed on the revolving platform can be upright with sunlight all the time.
    本文研制了一种自动二维旋转台 ,在此旋转台上固定的平板面能够始终与太阳光垂直。
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  fixed
The paper studies generic commutative and anticommutative algebras of a fixed dimension, their invariants, covariants and algebraic properties (e.g., the structure of subalgebras).
      
A basis is calledmonomial if each of its elements is the result of applying to a (fixed) highest weight vector a monomial in the Chevalley basis elementsYα, α a simple root, in the opposite Borel subalgebra.
      
Rational smoothness and fixed points of torus actions
      
The symmetric varieties considered in this paper are the quotientsG/H, whereG is an adjoint semi-simple group over a fieldk of characteristic ≠ 2, andH is the fixed point group of an involutorial automorphism ofG which is defined overk.
      
LetMm be a closed smooth manifold with an involution having fixed set of the form (point)?Fn, 0>amp;lt;n>amp;lt;m.
      
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In the paper,optical analysis was made for spherical focusing heliostats according to optical reflect principle and astigmatism.An expression related to both focal spot size and focal distance was derived for sphemcal Heliostuts of fixed curvature.And experimental results are also reported here.

本文利用光学的反射原理及象散现象,对凹球面定日镜进行了光学分析,得出了有关固定曲率凹球面定日镜的焦斑尺寸及焦距的计算公式,并报道了实验结果。

Based on the fixed-node equally convectedmixing model for similating the system performance of a solar hot water svstem with natural circulation assisted by an auxi-liary electric heater, this paper carries out numerous calculations and derives the general correlation for estimating the optimum power with the calculated results.

本文根据对所建的带辅助电加热器自然循环太阳能热水系统性能模拟的固定节点等量混合对流模型,进行了大量的计算,并根据计算结果归纳出匹配功率的经验计算公式。

Based on the fixed-note, equally-convective-mixing model developed by the

根据作者所建立的固定节点等量对流混合模型,本文从理论上详细模拟计算和研究了带辅助电加热器自然循环太阳能热水系统的运行特性,并对各种参数对系统性能的影响作了详尽的分析,为此类系统的设计和研究提供科学的依据.

 
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