“axis of sighting”的概念、定义、翻译、参考文献-科学参考

单词	axis of sighting
释义	axis of sighting [`ak·sǝs ǝv `sīd·iŋ] ^ENGINEERING A line taken through the sights of a gun, or through the optical center and centers of curvature of lenses in any telescopic instrument.
随便看	direct control function direct cost direct-coupled direct-coupled amplifier direct-coupled FET logic direct-coupled transistor logic direct coupling direct current direct-current amplifier direct-current circuit direct-current circuit theory direct-current component direct-current continuity direct-current coupling direct-current discharge direct-current dump direct-current electrode negative direct-current electrode positive direct-current erase direct-current generator direct-current inserter direct-current motor direct-current motor control direct-current offset direct-current picture transmission

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