null在词典中的意思,短语,例句,发音,词形变化_tingroom在线词典

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基本释义

a. 无效力的,无效的,无价值的;
n. 零;

词形变化

时　态：nulled, null·ing, nulls

常用短语

1. null set
  零测度集，空集，空集合
2. null space
  零化空间，零空间

英英解释

　1个名词解释
1. a quantity of no importance
  [同] cypher, goose egg, aught, nada, naught, nil, nix, nothing, null, zero, zilch, zip, zippo, cipher
  [例]
  - it looked like nothing I had ever seen before
  - reduced to nil all the work we had done
  - we racked up a pathetic goose egg
  - it was all for naught
  - I didn't hear zilch about it
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　1个形容词解释
1. lacking any legal or binding force
  [同] null, void
  [例]
  - null and void
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