steradian的意思、翻譯和例句

是什麼意思

「立體角」是用來描述三維空間中角度的一種單位,特別是在球面上。它的定義是以球心為頂點,球面上某一部分的面積與球的半徑平方的比值。1 立體角等於一個單位球面上面積為 1 的立體角。立體角的單位是 steradian (sr)。在物理學中,立體角常用於描述光源的輻射強度、天文學中的星體觀測以及其他需要考慮三維空間角度的情況。

依照不同程度的英文解釋

  1. A way to measure angles in three-dimensional space.
  2. An angle that covers a part of a sphere.
  3. Used to describe how much space an angle takes in three dimensions.
  4. A unit for measuring angles that spread out in all directions.
  5. A measure of how much of a sphere is covered by an angle.
  6. A unit that quantifies the size of a solid angle.
  7. A dimensionless quantity that describes the angle in three-dimensional geometry.
  8. A specific measure of a solid angle in a three-dimensional space.
  9. A unit that represents the ratio of the area of a spherical surface to the square of the radius.
  10. A measurement for angles that extend over a spherical area.

相關英文單字或片語的差別與用法

1:Solid angle

用法:

立體角是用來描述三維空間中某一部分的角度,通常用於物理和數學中。它的單位是立體弧度,並且可以用來計算與光源或其他三維物體相關的現象。

例句及翻譯:

例句 1:

這個物體的立體角可以用來計算其發光強度。

The solid angle of this object can be used to calculate its luminous intensity.

例句 2:

在天文學中,立體角對於觀測天體的亮度非常重要。

In astronomy, the solid angle is crucial for observing the brightness of celestial objects.

例句 3:

我們需要知道這個光源的立體角才能計算其輻射範圍。

We need to know the solid angle of this light source to calculate its radiation range.