In this paper, the accelerating feature of solar wind flow from subsonic and sub-Alfven velocity into supersonic and super-Alfven velocity is discussed in the axis-symmetric magnetic flux tube.

本文讨论了轴对称磁力线管中太阳风从亚声速和亚阿尔文速度加速到超声速和超阿尔文速度的过程。

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The meteorological parameters, such as solar radiation, temperature difference and wind velocity are boundary conditions in temperature effect analysis of structures.

在结构温度作用计算中需气象参数作为其边界条件，主要有日照辐射、气温日较差、风速这三个参数。

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The paper presents a study on measuring the vent mean wind velocity of solar collecting wall in solar house.

本文对被动式太阳房集热墙风口平均风速的测定进行了研究。

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Effects stemming from the Earth's atmosphere, from ocean tides and from the solar wind of charged particles were all found to be too small to explain the spacecrafts' extra velocity.

ECONOMIST: Physics