“battery command periscope”的概念、定义、翻译、参考文献-科学参考

单词	battery command periscope
释义	battery command periscope [`bad·ǝ·rē kǝ¦mand `per·ǝ´skōp] ^OPTICS An optical instrument consisting of dual telescope tubes positioned vertically on a common mounting; it provides periscopic vision for the observer, and may be used to observe artillery fire.
随便看	operational maintenance operational standby program operational unit operational weather limits operation analysis operation analysis chart operation breakdown operation code operation cycle operation decoder operation number operation part operation process chart operation register operations research operations sequence operation time operative ankylosis operator operator algebra operator hierarchy operator interrupt operator process chart operator productivity operator's console

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