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首頁英語詞典nullnull實用場景例句

null

英 [n?l] 美[n?l]

英英釋義實用場景例句

adj. 無效的，無價值的；等于零的
n. 零，[數(shù)] 空

實用場景例句

A spokeswoman said the agreement had been declared null and void.: 女發(fā)言人稱該協(xié)議已宣布無效。

The agreement will be considered null and void.: 該協(xié)議將被視作無效。

When the galvanometer reads zero the circuit is in the null - balance position.: 當檢流計的讀數(shù)為零時,電路處于零平衡位置.

This null - balance system is usually more accurate than the direct - readout bridge.: 這種調(diào)零系統(tǒng)通常比直讀電橋更精確.

The court ruled that the claim was null and void.: 法庭裁決此項要求無效.

The operator O is the null operator.: 算符O是零算符.

This check is null and void.: 本支票無效.

This contract is null and void.: 此合同無效.

The null subset corresponds to the term 1.: 空集則對應于常數(shù)項1.

The null result of the Michelson - Morley experiment suggests that the effects of the ether are undetectable.: 邁克耳孫- 莫雷實驗的否定結(jié)果使人想到,以太的效應是不能檢查到的.

Whenever we reject the null hypothesis, the conclusion we do accept is called the alternative hypothesis.: 無論何時,拒絕無效假設時, 我們所接受的結(jié)論叫做備擇假設.

The null result was directly related to a central postulate of the theory.: 零結(jié)果都直接與理論的中心假設相聯(lián)系.

A null - balance system is provided by balancing the magnetic forces by electrostatic forces.: 零位平衡系統(tǒng)是靠靜電力來平衡磁力而造成的.

The device provides extreme sensitivity through a small range around the null point.: 此裝置在零點附近很小一段范圍內(nèi)具有極高的靈敏度.

The term null hypothesis arose from earlier agricultural and medical applic ation of statistics.: 無效假設這個概念產(chǎn)生于早期的統(tǒng)計學在農(nóng)業(yè)和醫(yī)學方面的應用中.