spiral disk 中文意思是什麼
spiral disk
解釋
螺狀磁盤-
This article takes the lagrange equation as the principle, establishes mathematics modeling to the inertia brake vibration when it brakes, then simulates it with matlab. this paper educed the relation equations between, which are the inertia brake ' s friction coefficient of the brake ring and the friction disk, the mean radius, the braking force, rotation inertia of the driving top and the spline shaft, spiral climbing angle of the brake ' s concave - convex helicoid, the mean effort radius of the concave - convex helicoid, elasticity coefficient of the spring, quality of the driving top and the spline shaft, rotations inertia of the brake ' s rotation part besides the driving top and the spline shaft, suppresses sleeve. provides the theory basis for the inertia brake structure optimization
本文以拉格朗日方程為理論基礎，對慣性制動器在制動時的振動進行數學建模，然後用matlab對其進行模擬，得出了慣性制動器在制動時振動角頻率分別與制動環和摩擦片之間的摩擦系數、制動力的平均半徑、主動頂和花鍵軸的轉動慣量、慣性制動器的凹凸螺旋面的螺旋升角、凹凸螺旋面平均作用力的半徑、彈簧的彈性系數、主動頂和花鍵軸的質量、慣性制動器除主動頂和花鍵軸外其他部分的轉動慣量和、頂壓套的質量等慣性制動器各零部件的物理參數之間的關系，為慣性制動器的結構優化提供了理論依據。 -
Elliptical galaxies do not take on the flat - disk or spiral shapes that most galaxies do
橢圓星系並不具有大多數星系具有的扁圓或是螺旋型的形狀。 -
Whether an entire galaxy becomes a disk is a timing issue : spiral galaxies emerge from gas that becomes rotationally supported before patches of the gas contract into stars
至於整個星系變成一個圓盤則是時機問題：螺旋星系的出現，是因為在每一小團氣體因收縮而形成恆星前，整團氣體已經成為旋轉性支撐。 -
Clouds of stars and glowing gas, with patches of darkening dust, mark the slow - changing spiral patterns of the galaxy disk
點綴著暗淡塵埃的團團恆星和發光星雲，標記著銀河系緩慢變化的旋渦外形。 -
Another possibility is that large - scale spiral waves in the disk, similar to the spiral arms observed in galaxies, hasten the inflow of matter
另一個可能性是，類似星系旋臂的大尺度螺旋波，加劇了物質的向內流動。 -
This flat circular disk is our own galaxy, the milky way, with its spiral structure
這個圓盤就是我們的星系，銀河系，帶著旋渦的結構。 -
Hubble space telescope image ? shows m87 [ lower right ] a giant elliptical galaxy. elliptical galaxies do not take on the flat - disk or spiral shapes that most galaxies do
哈勃望遠鏡拍攝下來的圖象： m87一個巨大的橢圓星系。橢圓星系並不具有大多數星系具有的扁圓或是螺旋型的形狀。 -
A hubble space telescope image ? shows m87 [ lower right ] a giant elliptical galaxy. elliptical galaxies do not take on the flat - disk or spiral shapes that most galaxies do
哈勃望遠鏡拍攝下來的圖象： m87一個巨大的橢圓星系。橢圓星系並不具有大多數星系具有的扁圓或是螺旋型的形狀。 -
Another prominent feature of the milky way galaxy is the spiral arms. they consist of young stars extending from the center to the edge of the disk
銀河系另一個重要的特徵便是它的旋臂，這些旋臂由中心延展至銀盤邊緣，包含了無數年青的恆星。
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