“origin of the trajectory”的概念、定义、翻译、参考文献-科学参考

单词	origin of the trajectory
释义	origin of the trajectory [`är·ǝ·jǝn ǝv thǝ trǝ`jek·tǝ·rē] ^ORDNANCE Center of the muzzle of a gun at the instant when the projectile leaves it.
随便看	twist twist boundary twist drill twisted curve twisted pair twister twisting twist-lock connector twist of rifling twistor twist-yarn cloth Twitchell reagent two-address code two-address instruction two-beam interference two-body force two-body problem two-carrier theory two-component model two-component neutrino theory two-cycle two-cycle engine two-decision problem two-degrees-of-freedom gyro two-dimensional chromatography

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