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单词 null
释义
null
adjective
uk
/nʌl/us
/nʌl/
having nolegalforce:
无法律效力的
The 1944contracthas since beendeclarednullandvoid.这份1944年的合同已被宣布无效。
About 200marriagesin thedioceseweredeclarednull lastyear.该教区去年约有二百桩婚事被宣布无效。
Buyouttermsbecomenull if thecompanyhas notbrokengroundfor a newstadiumbyJuly1.如果该公司到七月一日未能破土兴建一个新的体育场，则买断条款作废。
Synonym
invalid
with novalueoreffect:
没有价值的；没有作用的
Will these nullfindingschangeanyone'sopinionofESP?这些无效的发现会改变任何人对ESP的看法吗？
Fourdecadesof a nullresultshouldtellus something about thehypothesisthat there areintelligentcivilizationsinspace.四十年来对于太空中存在智能文明这一假设的研究毫无结果，这应该给我们一点启示了。
mathematicsspecialized
(of a set ormatrix)containingnothing orcontainingonlyzeros:
空值，零
Amatrixhaving allitselementszero is said to be null and is written 0.一个所有元素为零的矩阵称为空矩阵，记为 0。
Failedsearchesaredefinedas null setresults.失败的搜索被定义为空集结果。
SMART Vocabulary: related words and phrases
Court cases, orders & decisions
  • actionable
  • administer
  • admissibility
  • admissible
  • affidavit
  • conveyancing
  • exhibit
  • extinguishment
  • extrajudicial
  • fatal accident inquiry
  • finding
  • gagging order
  • inquest
  • moot
  • plead
  • precedent
  • pretrial
  • probate
  • provide
  • reconvict
See more results »

You can also find related words, phrases, and synonyms in the topics:

Something, anything, nothing, and everything
Numbers: groups of things according to number
null
noun[C]
uk
/nʌl/us
/nʌl/
anemptyvalueor a zero:
空值，零
Flags may be used topreventnulls bybringingattentionto theabsenceof avaluein atable.可以使用标记让人注意到表格中没有填入数值的地方，从而防止出现空值。
He took down thelengthylistofproducepricesanderadicatedthezerosor "nulls".他记下了冗长的农产品价格清单，并消除了零或"空值"。
SMART Vocabulary: related words and phrases
Numbers: cardinal, including nought & zero
  • A, a
  • B, b
  • bi
  • deca-
  • eleven
  • fifteen
  • five
  • forty
  • googol
  • milliard
  • multi-trillion
  • nineteen
  • ninety
  • seventy
  • six
  • ten
  • thirty
  • trillion
  • twelve
  • unit
See more results »

You can also find related words, phrases, and synonyms in the topics:

Numbers: groups of things according to number
null
verb[T]
uk
/nʌl/us
/nʌl/
toremovetheeffectof one thing by doing another thing that has theoppositeeffect:
Used in verysmallquantities, thedigestiveaidnulls thiseffectandaddsawonderfularomato thevegetables.
Thedeflectionof thegyrospinaxisisdetectedand nulled by thestabilizationloops.
Synonym
cancelsomethingout
SMART Vocabulary: related words and phrases
Destroying and demolishing
  • annihilate
  • annihilation
  • apocalypse
  • bash
  • bash through (something)
  • be sacrificed on the altar ofsomethingidiom
  • fall in
  • in piecesidiom
  • indestructibility
  • killsomethingoff
  • kill the goose that lays the golden eggidiom
  • sacrifice
  • self-devouring
  • shred
  • sink
  • smash
  • stave
  • stavesomethingin
  • takesomethingout
  • tear
See more results »
(Definition ofnullfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)
null
adjective
/nʌl//nʌl/
having nolegalforce
无法律效力的
The 1944contracthas since beendeclarednullandvoid.这份1944年的合同已被宣布无效。
About 200marriagesin thedioceseweredeclarednull lastyear.该教区去年约有二百桩婚事被宣布无效。
Buyouttermsbecomenull if thecompanyhas notbrokengroundfor a newstadiumbyJuly1.如果该公司到七月一日未能破土兴建一个新的体育场，则买断条款作废。
Synonym
invalid
with novalueoreffect
没有价值的；没有作用的
Will these nullfindingschangeanyone'sopinionofESP?这些无效的发现会改变任何人对ESP的看法吗？
Fourdecadesof a nullresultshouldtellus something about thehypothesisthat there areintelligentcivilizationsinspace.四十年来对于太空中存在智能文明这一假设的研究毫无结果，这应该给我们一点启示了。
mathematicsspecialized
(of a set ormatrix)containingnothing orcontainingonly zeros
空值，零
Amatrixhaving allitselementszero is said to be null and is written 0.一个所有元素为零的矩阵称为空矩阵，记为 0。
Failedsearchesaredefinedas null setresults.失败的搜索被定义为空集结果。
null
noun[C]
/nʌl//nʌl/
anemptyvalueor a zero
空值，零
Flags may be used topreventnulls bybringingattentionto theabsenceof avaluein atable.可以使用标记让人注意到表格中没有填入数值的地方，从而防止出现空值。
He took down thelengthylistofproducepricesanderadicatedthe zeros or "nulls".他记下了冗长的农产品价格清单，并消除了零或"空值"。

null| Business English

null
adjective
uk
/nʌl/us
MEASURES
having avalueof zero:
Browserperformancewasimprovedbyanalysingfailedsearcheswhichreturnnull setresults.
LAW
→null and void:
Theyaskedthesupremecourttodeclaretheirsentencesnull andseekcompensation.
(Definition ofnullfrom theCambridge Business English Dictionary© Cambridge University Press)

Examplesofnull

null
The remaining involved modes, including those corresponding to and its derivative, are assumed to be numericallynull.
From theCambridge English Corpus
It is also important to note that the power of the test to reject thenullhypothesis probably suffers from this sort of procedure.
From theCambridge English Corpus
Responses are presented as a function of the luminance intensity of thenull-direction component of the transparent stimulus.
From theCambridge English Corpus
The children's utterances were coded for the informational status of any referring expressions using four categories: full noun, pronoun,null, and no response.
From theCambridge English Corpus
The goodness of fit in all specifications is reasonable and thenullhypotheses of no misspecification and homoscedasticity are not rejected either.
From theCambridge English Corpus
Nullfindings are difficult to interpret because of the small samples and brief follow-up periods (f2 years) used in most previous studies.
From theCambridge English Corpus
This will allow, in turn, examination of the issue of whether the size results obtained are sensitive to spectral shape adopted under thenullhypothesis.
From theCambridge English Corpus
This may reflect that researchers want to be able to make probability statements about thenullhypothesis being false (1).
From theCambridge English Corpus
This instability seems to arise because field line oscillations accumulate at thenullpoint in such a way that it cannot remain static.
From theCambridge English Corpus
As for number,nullsubjects only occurred in singular contexts and never in plural contexts.
From theCambridge English Corpus
There are several other ways in which thesenull-effects may have arisen.
From theCambridge English Corpus
The number of statistically significant results found means that thenullhypothesis that rodents are evenly distributed amongst the manholes must, therefore, be firmly rejected.
From theCambridge English Corpus
We worked from thenullhypothesis that rodents should be evenly distributed throughout the sewer network.
From theCambridge English Corpus
So, for example, when we select alpha = 0.05, we should falsely reject thenull5% of the time even when it is true.
From theCambridge English Corpus
Demographic departures from the standardnullmodel are expected to affect the patterns of observed variability over the whole genome.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/null##
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更新时间：2024/12/28 3:46:12