“Interpolated Screen Rate”是插值屏幕利率，贷款协议中借贷双方需要约定的还款利率。具体而言，插值屏幕利率是指在无法获得屏幕利率的情况下，通过插值法使用以下数据计算的利率：（i）与贷款的利息期最接近的较长利息期的屏幕利率；（ii）与贷款的利息期最接近的较短利息期的屏幕利率。较短期限利率（Shortened Interest Period）是指将利息期缩短至双方约定的期限，并按照这一利息期确定基准利率。历史屏幕利率（Historic Screen Rate）是指：在利率确定日之前【X】日以内，与利息期相同期限的屏幕利率的取值。其英文释义如下，供参考：

“Interpolated Screen Rate” means in relation to the LIBOR Rate for any Loan, the rate per annum determined by the Lender (which determination shall be conclusive and binding absent manifest error) to be equal to the rate that results from interpolating on a linear basis between: (a) the rate as displayed on the applicable Bloomberg page (or on any successor or substitute page or service providing quotations of interest rates applicable to Dollar deposits in the London interbank market comparable to those currently provided on such page, as determined by the Lender from time to time; in each case the “Screen Rate”) for the longest period (for which that Screen Rate is available) that is shorter than the applicable Interest Period and (b) the Screen Rate for the shortest period (for which that Screen Rate is available) that exceeds such Interest Period, in each case, at approximately 11:00 a.m., London time, on the Quotation Day for such Interest Period.

插值法则是数学上的一种计算方法：在离散数据的基础上补插连续函数，使得这条连续曲线通过全部给定的离散数据点。

有时候贷款协议中也会使用替代屏幕利率条款（Replacement of Screen Rate Clause），该条款不要求借贷双方在当下就新的替代利率达成统一意见，而是约定一系列阶梯性条款，有待当事方在未来某个约定的时间点或达到某个触发点，再次协商决定新的替代利率。这是一种更具弹性的解决机制。

以下为相关双语示例：

Interpolated Screen Rate. If no Screen Rate is available for LIBOR for the Interest Period of a Loan, the applicable LIBOR shall be the Interpolated Screen Rate for a period equal in length to the Interest Period of that Loan.

插值屏幕利率。如果在贷款的计息期内没有可用的伦敦银行同业拆借利率可作为屏幕利率，则适用的伦敦银行同业拆借利率应为与该贷款的计息期时间相同的期限内的插值屏幕利率。