standard stars
An abnormality in colour of the nail plate and/or subungual tissues, sometimes induced by antineoplastic drugs.
plural of standard star
plural of 'keeper
(degree, informal) very. / (manner) With audibly expressed enjoyment.
天文学者たちは望遠鏡の光度応答を較正するためにいくつかの標準星を観測した。
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