... swinging mark 校正罗经自差用标 swinging marks 旋回标 swinging moment 转动力矩 ...
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This paper gives a brief description of various kinds of facilities, reconnaissance and surveying, and design of transit marks of a swinging ground for magnetic compass adjustment.
本文对磁罗经校正场的设备种类、勘察测量和标志设计等作了扼要的阐述。
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