pear gauge
Alternative form of custom house
plural of trimethylase
A kind of gauge for measuring the exhaustion of an air-pump receiver.
plural of poshtin
研究室の作業台に置かれたその古い洋梨形の真空計は、ポンプを数回動かした後の受器の排気状態をはっきり示していた。
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DiQt
Free
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