The frequency in the response spectrum where the zeroperiod acceleration asymptote begins.
频率响应谱中的零期渐近开始加速。
2
The Federal Reserve again kept interest rates near zero for an "extended period", but its accompanying language on the economy was markedly less optimistic than in recent months.
美联储又将在更长一段时间内将利率控制在零附近，但是关于经济的一些评论明显没有前几个月乐观。
3
A country reporting zero cases over a period of 14 consecutive months is believed to have interrupted transmission.