quantity study

• 量的研究

quantity study的用法和样例：

例句

1. The race for more pitching in quantity and quality never stops.
   在更多投手的质和量的补强竞争是永远不会停止的。
2. An actuary provides a forecast in the quantity of sufficient reserves that an insurance company should possess.
   精算师为保险公司拥有足够的储备金提供了量的预测。