In this paper, the spectral methods based on the input output system theory (IOST) were used to compute quantities related to the gravity field.

本文所采用的基于输入-输出系统论的谱方法在计算结果的精度上与最小二乘配置方法相当，却很容易用于异性场的计算。

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On most PCs, it's called the BIOS. (The word is an acronym for basic input/output system.)

在大部分 PC 上，这都称为 BIOS（这个单词是 basic input/output system（基本输入/输出系统）的缩写）。

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The NOR type needs to be ultrafast because it is directly connected to the central processing unit of a computer and stores its basic input-output system (the operating system used by the microchip that lies beneath user-interface operating systems, such as Windows).

FORBES: Magazine Article

As well as the main processor, the new system includes a second chip, the SM35, to handle various input and output functions such as USB and audio.

BBC: Intel launches Oak Trail tablet processor