“height of instrument”的概念、定义、翻译、参考文献-科学参考

单词	height of instrument
释义	height of instrument [`hīt ǝv `in·strǝ·mǝnt] ^ENGINEERING 1. In survey leveling, the vertical height of the line of collimation of the instrument over the station above which it is centered, or above a specified datum level. 2. In spirit leveling, the vertical distance from datum to line of sight of the instrument. 3. In stadia leveling the height of center of transit above the station stake. 4. In differential leveling, the elevation of the line of sight of the telescope when the instrument is leveled.
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