In April,the P5+1 offered Iran a revised package of incentives for it to halt uranium enrichment and return to negotiations over its nuclear program.

VOA: standard.2009.09.11

So we are really looking at this reaction here H+ for ionization. It is H gas neutral goes to H plus in the gas phase plus the electron. And, furthermore, we can have multiple ionization energies.

所以我们真正看到的是,电离，它是在气相中H变为,和电子的过程，还有，我们能电离能加倍。

麻省理工公开课 - 固态化学导论课程节选

So basically the idea is that the more these firms produce, so the more the total quantity produced q1 + q2, the lower is the price in the marketplace for this product.

核心思想就是两家企业生产得越多,即产量,q1 + q2,越大,该产品的市场价格就越低

耶鲁公开课 - 博弈论课程节选