So what Kennedy was referring to was that while GDP has been the most common methodformeasuring the economic activity of nations, as a measure, it is no longer enough.
因此，肯尼迪所指的是，虽然 GDP 是衡量国家经济活动最常用的方法，但作为一种衡量标准，它已经不够合理了。
2
A direct methodformeasuring this is the pressure bleed test.
一种直接测定的方法就是压力泌水试验。
3
A simple methodformeasuring the time and space distribution of the light pulse intensity is reported.