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单词
ring system
释义
ring system
noun
:
the structure typical of a cyclic chemical compound and consisting of one or more rings (as fused rings)
< five- and six-membered
ring systems
>
— compare skeleton
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leadwork
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leady
leaf
leaf
leafage
leaf-and-dart
leaf and square
leaf-and-tongue
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leaf beetle
leafbird
leaf bite
leaf blight
leaf blister
leaf-blister sawfly
leaf blotch
leaf-book
leafboy
leaf bud
leaf-bud cutting
leaf bug
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更新时间:2026/3/20 12:43:25