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邮筒
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邮筒
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postal pillar box
邮筒
邮政企业供用户投寄平常信件的专用设施。设在邮局营业厅外及公共场所,供公众投寄平常信函和明信片用,外形通常呈筒状。又称信筒。
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cyclically monotone operator
cyclically reduced word
cyclically symmetric plane partition
cyclical rhythms
cyclical variability
cyclical variation analysis
cyclic approximation
cyclic automaton
cyclic block design
cyclic cell
cyclic center
cyclic chain
cyclic change
cyclic character
cyclic check
cyclic chronopotentiometry
cyclic class
cyclic cochain
cyclic code
cyclic codes
cyclic cohomology
cyclic cohomology group
cyclic complex
cyclic composition
cyclic congruence
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