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芘2
释义
芘2pí〈名〉从高于360癈的煤焦油馏分中得到的一种四环烃化物C16H6,无色,单斜晶体,熔点148癈,溶于乙醚,微溶于乙醇,不溶于水 [pyrene]另见bì
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under sb's wing
underscanning
underscore
undersea
under seal
under seal contract
underseas
undersecretary
undersell
under-sensitive
under sentence of death
under separate cover
under seperate cover
underserve
underset
undersexed
undersheriff
undershirt
undershoot
undershorts
undershot
undershrub
underside
undersign
under-signed
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更新时间:2026/6/12 20:02:38