neutral trim的用法和樣例：
例句
- This paper introduces the trim aerodynamic characteristics of re-entry modules.
本文主要介紹小升阻比載人飛船返回艙的配平氣動特性。 - Based on the model, according to the parameters of a medium type autogyro, the trim and control response characteristics are calculated.
在此基礎上，根據某中型旋翼機基本參數，對該機進行了配平及操縱響應特性計算。
