Firstly, the paper introduced theory base of the study, explained what is Expo and Expo economy, expatiated on multiplicator effect and coefficient of input-output unit.

本文首先重点介绍了研究的理论基础，阐述了世博会及世博经济的概念，并对乘数效应和投入产出系数做了相应的解释。

youdao

Both increase productivity, which is higher output per unit of labor input.

FORBES: Protection Does Not Create Jobs

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

My offer is very simple, which I will restate: I ask you to repeat the March 29, 2011 demonstration purported to show that your E-CAT unit had an output power of many times the input power through LENR (low energy nuclear reactions).

FORBES: E-Cat Proof Challenge: $1,000,000 is a "Clownerie"? (Updated)