分析了各种气体模型对激波脱体距离、壁面热流、温度分布和密度分布等的影响。
It is analyzed that the thermal and chemical model have a effect on the shock detached distance, heat transfer rate, the distributions of temperature and density.
植被高度、密度、覆盖度、侧影盖度等特征，通过影响下垫面空气动力学粗糙度来达到抑制风蚀的效果。
Vegetation characteristics, such as height, density, coverage, lateral coverage of vegetation are closely related to the aerodynamic roughness length.
试样具有一定的保温性能，且保温性大小与厚度、面密度成正比关系，与孔隙率、透气性等成反比关系。
Thermal insulation properties of specimens are proportional to thickness, surface density, and are inversely proportional to porosity, permeability, etc.
足够的功率密度、用适当的焦距并确定最好象面、再聚焦方法等是激光深微孔加工的重要因素。
The important factors for laser depth-microdrilling are the sufficient power density, suitable focal length, determination of the best image plane and refocusing etc.
试验在雌蜂不同年龄、寄主卵量、和雌蜂密度等三方面进行。
Three factors: the age of female parasitoid density of the host, and density of the female parasitoid were studied.
试验在雌蜂不同年龄、寄主卵量、和雌蜂密度等三方面进行。
Three factors: the age of female parasitoid density of the host, and density of the female parasitoid were studied.
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