spare capacity

基本解释

If there is enough spare capacity on the total managed system, it will boot up with the Desired -- not the minimum.
如果总管理系统上有足够的备用容量的话，就会用所需的数量来引导 —— 而不是用最小数量。
Saudi Arabia, the central bank of the oil market, technically has enough spare capacity to replace Libya, Algeria and a clutch of other small producers.
石油市场的中央银行沙特阿拉伯，从技术上说，有足够的额外能力来取代利比亚，阿尔及利亚，还有一系列的小型石油生产国。
If disturbances hit Algeria and threaten its oil industry too, the buffer of spare capacity would fall below where it stood in 2008.
如果动乱蔓延至阿尔及利亚且威胁到它的石油工业，用以缓冲的闲置产能可能跌至2008年的水平。

But with only 2 million bpd of spare capacity left, this cushion is wearing thin.
FORBES: Energy Stocks For An Ugly Market
In normal years, snowpack levels are lower and there is spare capacity on transmission lines.
FORBES: Connect
Moreover, with ample spare capacity in America, deflation looks a bigger risk than inflation.
ECONOMIST: Currencies