But a real key in looking at these plots is where we, in fact, did go through zero and have this zero probability density.

是我们经历这些零值,而且有这些零概率密度,我们把它叫做节点。

麻省理工公开课 - 化学原理课程节选

The hourly chart for GLD allows us to zero in on the key support levels to watch.

FORBES: GLD and SLV: When and Where to Buy

The central bank's rate-setting Federal Open Market Committee also kept its key interest rate at zero to 0.25%.

BBC: US central bank keeps buying bonds to boost economy

Last week, the central bank ended its policy of zero interest rates, lifting its key rate to 0.25%.

ECONOMIST: Business this week