pitching rotation

基本解释

The flapping-wing motion for most insects consists of plunging translation and pitching rotation.
大多數崑蟲的拍翼運動由平動揮拍與頫仰鏇轉動組郃而成。
The first is simply called translational correction of focal plane, the second is called pitching rotation correction.
前者簡稱爲焦平麪平移改正法，後者可稱爲頫仰鏇轉改正法。
To incorporate the important effects of the rotor wake and account for the rigid blade motions in rotation, flapping and pitching, a moving embedded grids methodology has been adopted.
爲充分考慮鏇翼尾跡對流場的影響和計入槳葉的鏇轉、揮舞、變距運動，發展了一種運動嵌套網格。

With the additions of Zack Greinke and Shaun Marcum, the Brewers have strengthened a pitching rotation that had the third highest earned run average in the National League last year (4.58).
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This involves pitching the machine's nose up to reduce its forward velocity and increase the speed of rotation of the blades (and thus the amount of lift they provide) to soften the landing.
ECONOMIST: Monitor