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null
美音: [n?l] 英音: [n?l]

null基本解釋

形容詞零值的; 等于零的; (協(xié)議) 無法律效力; 失效的

null網(wǎng)絡解釋

1. 空的:壓縮的時候,有一定的 bitrate,如果前面的畫面太難壓縮,用掉太多 bit,到了這個畫面時 bit 用光了,無法分配 bit 給這個畫面使用,這時這個Frame 無法壓縮,只好 drop 掉, 產(chǎn)生一個空的(Null) Frame.

2. 無效:由于本文采用間接法計算應力場,因此模型建立與網(wǎng)格剖分必須與溫度場的計算模型相同,將空氣與感應線圈單元設為無效(NULL)單元,溫度場所用單元PLANE55轉換為結構單元PLANE42,保持單元數(shù)與結點數(shù)不變.

3. null:nul; 空行;空值

null詞典解釋

1. (協(xié)議、宣言或選舉結果)無法律效力的,無效的
If an agreement, a declaration, or the result of an election is null and void, it is not legally valid.

e.g. 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。
e.g. The declaration was null and void as it was proclaimed in completely illegal circumstances.
該聲明無效,因為它是在完全非法的情況下宣布的。

null英英釋義

noun

1. a quantity of no importance

e.g. 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

Synonym: nothingnilnixnadaaughtciphercyphergoose eggnaughtzerozilchzipzippo

adj

1. lacking any legal or binding force

e.g. null and void

Synonym: void