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单词
positive ion
释义
positive ion
freq.
4
dict.
2
na.
正离子
[网络]
阳离子;带正电荷的离子;正电的正离子
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drafting instruments
drafting irregularity
drafting kit
drafting-machine
drafting machine
drafting machine with converter for artificial filaments
drafting manual
drafting method
drafting office
drafting paper
drafting pen
drafting pencil
drafting pit
drafting plan
drafting practice
drafting-practice
drafting resistance
drafting roller
drafting roller brake (drafting roller stopping arrangement)
drafting roller driving arrangement
drafting roller, roller section
drafting room
drafting room record
drafting-room standard
draftings
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更新时间:2026/10/8 6:30:33