low-background steel
To write in a messy, scribbly fashion. / (transitive) To scribble over.
Used other than figuratively or idiomatically: see low-background, steel. / Steel with low inherent radiation levels, suitable for instruments and experiments highly sensitive to radiation.
plural of Zuchowski
plural of wind hold
研究室は検出器の遮蔽材を作るために低放射能の鋼板を数枚注文した。
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DiQt
Free
★★★★★★★★★★