keep constant

基本解釋

But, in a situation like this, to clarify things, we'll actually say explicitly what it is that we want to keep constant.
但在類似的情形中，為了清晰明了，都會(huì)明確指出，什么保持恒定不變。
But, what we keep constant is v, or in terms of x and y, that's y minus x constant. And, that's why they are not the same.
保持v不變，也就是關(guān)于x和y的函數(shù)v=y-x恒定，這就是為什么它們不是一碼事。
This function does a good bit of position-munging, but it all boils down to a simple idea: Keep constant the precise distance between the mouse cursor and the target object.
該函數(shù)做很多位置整理（position-munging）工作，但都可歸結(jié)為一個(gè)簡(jiǎn)單的思想：不斷保存鼠標(biāo)光標(biāo)與目標(biāo)對(duì)象之間的精確的距離。

On the other hand, temperature, volume and pressure are variables that are much easier in the lab to keep constant.
另一方面，溫度，體積和壓強(qiáng),在實(shí)驗(yàn)室中比較容易保持恒定。
麻省理工公開(kāi)課 - 熱力學(xué)與動(dòng)力學(xué)課程節(jié)選
STUDENT: PROFESSOR: Yes, thank you. All right, it is constant. You keep sitting back there where I can't get to you. Thank you very much.
學(xué)生：【不解中】,教授：是的，是常數(shù)，如果，就是常數(shù),你坐在那兒一動(dòng)不動(dòng)我沒(méi)法找到你。
麻省理工公開(kāi)課 - 計(jì)算機(jī)科學(xué)及編程導(dǎo)論課程節(jié)選
How do I keep p1 constant while I'm lowering the volume?
怎么保持壓強(qiáng)不變,而減小體積？
麻省理工公開(kāi)課 - 熱力學(xué)與動(dòng)力學(xué)課程節(jié)選

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