altitudes
altitudes — 名詞
- altitudessingular
- altitudesesplural
1. the vertical distance of a place or an object measured from sea level
海拔高度
物體高出海平面的垂直距離
the vertical distance of a place or an object measured from sea level
Hiro's watch showed an altitude of 3,200 metres as they passed the timberline.
Hiro 的手錶顯示海拔高度 3200 公尺，當時他們正越過樹木生長線。
showed an altitude of + number + unit
Climbing to higher altitudes without rest can cause serious headaches.
在沒有充分休息的情況下爬到更高海拔，可能會引發嚴重頭痛。
higher altitudes as a challenging environment
The pilot adjusted the plane's altitude to avoid a line of dark clouds.
機長調整飛機的飛行高度，以避開一排烏雲。
Constanza checked the altitude on her phone while hiking up the trail.
Constanza 在步道上健行時，用手機查了一下海拔高度。
At this altitude, the temperature drops below freezing even in summer.
在這個海拔高度，夏季氣溫也會降到冰點以下。
- depth
distance below a surface, especially below sea level
文法句型
at an altitude of + number + unit
at high/low altitudes
用法筆記
Use 'elevation' for mountains and land features (e.g. 'the elevation of Mount Everest'), and 'altitude' for objects in the air or the general height of a location above sea level.
常見錯誤
2. the angle measured from the horizon upward to a star, planet, or other object in
高度角
天體在地平線以上的角度
the angle measured from the horizon upward to a star, planet, or other object in the sky
Kabir measured the altitude of the North Star using a simple sextant.
Kabir 用簡單的六分儀測量了北極星的高度角。
measured the altitude of [celestial object]
The altitude of Jupiter above the horizon increases after midnight.
木星在地平線以上的高度角在午夜過後會逐漸增大。
altitude of [planet] above the horizon
Astronomers calculate a star's altitude to determine its position in the night sky.
天文學家計算恆星的高度角，以確定其在夜空中的位置。
Lotte recorded the altitude of each visible planet in a notebook every hour.
Lotte 每小時在筆記本上記錄每顆可見行星的高度角。
The telescope automatically tracks a satellite's changing altitude across the sky.
這座望遠鏡會自動追蹤衛星在天空中變化的高度角。
- angular elevation
more technical synonym; used in formal astronomy writing
- angular height
informal synonym; less common in specialist contexts
文法句型
altitude of + celestial object + above + the horizon
用法筆記
Used mainly in astronomy and celestial navigation. The altitude of an object is measured in degrees (°), from 0° at the horizon to 90° directly overhead (the zenith).
3. the length in geometry that runs straight upward from the lowest side of a shape
高；垂直高度
幾何圖形底邊到頂點的垂直距離
the length in geometry that runs straight upward from the lowest side of a shape to the corner or side opposite it, forming a ninety-degree angle
Minho used a protractor to check the triangle's altitude met the base at 90 degrees.
Minho 用量角器檢查三角形的高是否與底邊成 90 度相交。
altitude meets the base at 90°
Adisa calculated the pyramid's altitude by comparing its shadow with a stick's.
Adisa 透過比較金字塔與一根棍子的影子，來計算其垂直高度。
Roya measured the cone's altitude with a ruler straight from tip to base.
Roya 用一把尺從圓錐頂端垂直量到底面，測出它的高。
Harper drew the altitude from the top vertex to the base of the triangle.
Harper 從三角形頂點到底邊畫了一條高。
Dewi multiplied the base area by the pyramid's altitude, then divided by three for the volume.
Dewi 把紙製金字塔的底面積乘上高再除以三，算出體積。
- perpendicular height
more descriptive term; emphasises the right-angle relationship with the base
- vertical height
common in geometry textbooks for upright figures like pyramids
文法句型
altitude of + geometric figure
the altitude from + vertex + to + base
用法筆記
In geometry, the altitude is always perpendicular to the base — it is not the same as the slanted side length of a triangle or cone. For a right triangle, one of the legs can serve as the altitude.