“sighting system”的概念、定义、翻译、参考文献-科学参考

单词	sighting system
释义	sighting system [`sīd·iŋ ´sis·tǝm] ^ORDNANCE A mechanical or optical device for aiming a firearm or for laying a gun in position.
随便看	balance bar balance beam balance car balance coil balance control balanced amplifier balanced anesthesia balanced armature unit on the solid on the way ontogeny on-top flight Onuphidae on-vehicle materiel onychia Onychodontidae onychomycosis onych-, onycho- Onychopalpida Onychophora onychorrhexis Onygenaceae onyx onyx agate onyx marble

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