rotational
US /roʊ'teɪʃənl/
・UK /rəʊ'teɪʃənl/
B2 中高級
adj.形容詞轉動的 ； 輪流的
The rotational speed of a spinning object can be calculated
影片字幕
工程師解析再生能源電網設計三大關鍵問題！| WSJ Pro (Engineer Explains Three Key Issues in Renewable Grid Design | WSJ Pro Perfected)
- Renewable power, wind and solar specifically, don't provide something we call inherent rotational inertia, which is something that has provided stability to the grid for decades, since basically it was first invented.
可再生能源，特別是風能和太陽能，並不能提供我們稱之為固有轉動慣量的東西，而這種東西在幾十年前就已經為電網提供了穩定性。
- solar specifically, don't provide something we call inherent rotational inertia, which is something that has provided stability to the grid for decades since basically it was first invented.
傳統的發電廠，如煤炭和天然氣發電廠，在設計上都有慣性。
為什麼日蝕會從西向東移動？ (Why Do Eclipses Travel WEST to EAST?)
- The key to the explanation is that the paths of the sun and moon through the sky depend on the rotational speed of the objects involved, while the paths of eclipses depend on just the plain old, straight line speed of the moon above the earth's surface.
解釋的關鍵在於，太陽和月亮在天空中的軌跡取決於相關天體的旋轉速度，而日食的軌跡則僅僅取決於月球在地球表面上方的普通直線速度。
- The key to the explanation is that the paths of the sun and moon through the sky depend on the rotational speed of the objects involved, while the paths of eclipses depend on just the plain old, straight-line speed of the moon above the Earth's surface.
解釋的關鍵在於，太陽和月亮在天空中的軌跡取決於相關天體的旋轉速度，而日食的軌跡則僅僅取決於月球在地球表面上方的普通直線速度。
歐拉公式與群論入門！ (Euler's formula with introductory group theory)
- But this time, as we drag the number 1 to places that are off the real number line, we see that our group includes not only stretching and squishing actions, but actions that have some rotational component as well.
但這次，當我們把數字 1 拖到偏離實數線的位置時，我們會發現，我們這組數字不僅包括拉伸和擠壓動作，還包括一些旋轉動作。
- actions that have some rotational component as well.
2 乘以自身的一半或負數 1 是什麼意思？
醫師們最不想看到的 TikTok 瘋傳影片！💊😂 (Your Doctor's Least Favorite TikToks)
- The idea behind the machines is that they're supposed to strengthen rotational athletes through the full range of motion, although they do look pretty goofy and they're easy to make fun of.
機器背後的想法是
- The idea behind the machines is that they're supposed to strengthen rotational athletes through the full range of motion.
希望雞肉沒有吃加工飼料。
史上最後一次日蝕！ (The LAST Eclipse in History)
- And so over time, tidal forces have transferred some of the earth's rotational momentum to the moon, sending the moon farther and farther away.
是以，隨著時間的推移，潮汐力將地球的部分自轉動量傳遞給了月球，使月球越來越遠。
- And so over time, tidal forces have transferred some of the Earth's rotational momentum to the moon, sending the moon farther and farther away.
最後一次日全食將使地球的天空變暗。
風力發電機為什麼有三片葉片？ (Why Do Wind Turbines Have Three Blades?)
- So in general, many bladed windmills work better at lower rotational speeds relative to wind speed.
是以，一般來說，許多葉片風車在相對風速較低的轉速下工作得更好。
- On the other hand, a windmill with fewer blades generates less torque, but also experiences less drag, so fewer bladed windmills tend to work better at higher rotational speeds.
另一方面，葉片較少的風車產生的扭矩較小，但阻力也較小，是以葉片較少的風車在轉速較高時往往能更好地工作。