s.n.
abbr. （拉）未署名（Sine Nomine）；无出版及印刷单位
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短语
专业释义
英英释义
s.n.
n.a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide 同义词：tinSnatomic number 50
英汉双解大词典