variation compass
stiver
A compass of delicate construction, used in observations on the variations of the needle.
(pathology) A noninflammatory disease of the choroid and retina of the eye.
Alternative form of Jakaltek
測量士は海岸沿いの磁気測定を記録する前に、磁針の変動を観測するための精密な羅針盤を点検した。
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DiQt
Free
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