No matter how well tuned a UNIX box is, it's optimized only for a set condition; if the condition changes or is replaced, the UNIX administrator has to adjust accordingly.

无论 UNIX 计算机调整得多么好，它只对于一组条件是最优的；如果条件发生了变化，UNIX 管理员必须相应地进行调整。

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Meanwhile, the set condition that pedestrian crossing transform from non-signal control mode to signal control mode was analyzed by using probability theory and gap acceptance theory.

基于概率论方法和可穿插间隙理论，分析了人行横道由无信号控制方式过渡至信号控制方式的设置条件；

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Argentina failed to hit the economic targets set as a condition for loan payments.

阿根廷没能达到作为贷款偿还条件而设的的经济目标。

《柯林斯英汉双解大词典》

"It got me thinking about 500 years of history of Columbus, slavery, thuggish leaders, dysfunction, natural disasters all the things that set the condition for hundreds of thousands of people to die in a few minutes, " he said.

WSJ: The Enduring Voice of Haiti

Many everyday activities that cause discomfort, even something as trivial as sunburn, can set off the condition naturally.

BBC: Paralympic athletes who harm themselves to perform better

The release of political prisoners has always been a foremost condition set by the United States before considering restoring full diplomatic relations.

ECONOMIST: The government moves, and gets its rewards