trajectory是什么意思 trajectory的用法 trajectory怎么读

trajectory

英 [trə'dʒekt(ə)rɪ; 'trædʒɪkt(ə)rɪ]美 [trə'dʒɛktəri]

n. [物] 轨道，轨线；[航][军] 弹道

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星级词汇:★

中文词源

trajectory 轨迹，踪迹，弹道

tra-,转移，穿过，-ject,扔，投射，词源同 project,jet.引申词义轨迹，踪迹，弹道等。

英语词源

trajectory (n.)

"path described by a body Moving under the influence of given forces," 1690s, from Modern Latin trajectorium

, from trajectorius "of or pertaining to throwing across," from Latin traiectus "thrown over or across," past participle of traicere "throw across, shoot across," from Latin trans- "across" (see trans-) + icere, combining form of iacere "to throw" (see jet (v.)). Middle French and Middle English had trajectorie as "end of a funnel," from Latin traiectorium.

权威例句

1. My career seemed to be on a downward trajectory.

我的事业似乎在走下坡路。

2. It is not difficult to sketch the subsequent trajectory.

很容易描绘出它们最终的轨迹.

3. The path followed by a projectile is called its trajectory.

抛物体所循的路径称为它的轨道.

4. The missile deflected from its trajectory.

导弹已偏离轨道.

5. From then on it must coast in a trajectory, or flight path, to its target.

从那时起,它就得沿着弹道, 即沿着飞行航线滑向其目标.

[ trajectory 造句 ]