“elevation rate”的概念、定义、翻译、参考文献-科学参考

单词	elevation rate
释义	elevation rate [´el·ǝ`vā·shǝn ´rāt] ^ORDNANCE Rate of change of present elevation of artillery; it is equal to minus the zenith distance rate of the present line, and may be expressed in mils per second or degrees per second.
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