这些被称为重子声学振荡的东西为测量随时间变化的宇宙的膨胀速度和对暗能量的值施加限制提供另一尺码。
The exchange rate that leaves a Big Mac costing the same in dollars everywhere is our fair-value yardstick.使世界各地巨无霸的售价都统一折算成相同美元数的汇率是我们的公平价值尺度。
The new five-year bonds will pay a coupon of 6.2%, a 3.5 percentage-point spread over the “mid-swaps” rate, a yardstick for creditworthy borrowers of EUROs.新五年期债券给出了6.2%的年息,高出掉期利率中间价(欧元贷款者信用可靠的标准利率)3.5个百分点。