Kara, we calculated the rate of radioactive decay.

卡拉 我们计算过放射衰变率。

A separate indictment charged BP vice president David Rainey with obstructing Congress and lying about how he calculated the rate of the spill.

另一份起诉书指控 BP 副总裁戴维雷尼妨碍国会，并在他如何计算泄漏率方面撒谎。