congruence
n. 一致;适合;[数] 全等
n.适合,一致,叠合,全等,相合性
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lolian2#163.com
n. 一致;适合;[数] 全等
n.适合,一致,叠合,全等,相合性
anticoagulant antiproton behaviourist linear octahedra peripherad undunged