闭子集 | Chinese meaning | lingaku

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闭子集【bì zǐ jí】

closed subset (math.)

闭子集【bì zǐ jí】

closed subset (math.)

闭

HSK 4

含义shut, close; obstruct, block up

拼音bì

子

HSK 11

含义offspring, child; fruit, seed of; first earthly branch

拼音zi

集

HSK 33

含义assemble, collect together

拼音jí