trajectory

• n. [物]軌道、追跡; [空] [軍]弾道

tra-、移送する、通過する、-ject、投げる、投射する、語源的にはproject、jetと同じ。 派生 trajectory、trail、弾道など。

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.

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

私の事業は下り坂になっているようです。

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

は最終的な軌跡を描きやすい。

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

物を投げる経路をその軌道と呼ぶ。dd>

4.The missile deflected from its trajectory .

ミサイルは軌道から外れている。

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

それ以来、それは弾道に沿って、すなわち飛行航路に沿ってその目標に滑らなければならない。