limescale
plural of synchrocyclotron
A device for measuring the length of curves, such as on a map
A white, chalky deposit of calcium carbonate found in kettles, washing machines etc., especially in a hard water area.
An English and north-west European topographic surname for someone who lived by a small wood. / A market town in Norfolk, England (OS grid ref TG0738). / A village in Dorset, England.
硬水で1年使った結果、そのやかんは頑固な水垢で詰まってしまった。
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