trajectory

大学 FREQ #12559 ★☆☆☆☆

n. 轨道, 弹道, 轨线 [化] 轨道

发音

US /tɹəˈd͡ʒɛktəɹi/

词形变化

trajectories 复数 trajectories

教材释义与例句

名词

轨道，轨线； 弹道

释义与例句

n.
  1. 1.

    The path an object takes as it moves.

  2. 2.

    The path of a body as it travels through space.

    轨道

    弹道

    航空 天文 商务 工程
  3. 3.

    The ordered set of intermediate states assumed by a dynamical system as a result of time evolution.

  4. 4.

    A course of development, such as that of a war or career.

    比喻

词汇关系

名词

同义词 1

flight

下位词 2

ballistics gravity assist

词源

From New Latin trāiectōria f (“trajectory”) (used by Newton), the feminine of trāiectōrius (“of or pertaining to throwing across”), from Latin trāiectus (“thrown over or across”), past participle of trāiciō, from trans- (“across, beyond”) (see trans-) + iaciō (“to throw”) (from Proto-Indo-European *(H)yeh₁- (“to throw, impel”)). Middle French and Middle English had trajectorie (“end of a funnel”), from Latin trāiectōrium.

来源：wiktionary