“periscopic sight”的概念、定义、翻译、参考文献-科学参考

单词	periscopic sight
释义	periscopic sight [´per·ǝ`skäp·ik `sīt] ^ORDNANCE Gunsight made in the form of a periscope, permitting a gunner to see over an obstacle.
随便看	hydroxyl- hydroxylamine hydroxylamine hydrochloride hydroxylapatite hydroxylase hydroxylation reaction hydroxylherderite hydroxyproline hydroxyurea hydrozincite Hydrozoa Hydrus hyena Hyeniales Hyeniatae Hyeniopsida hyetal coefficient hyetal equator hyetal region hyetograph hyetography hyetology Hygiea hygiene hygristor

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