Water safety is an important component of the safeties in the city.
水安全问题是城市安全问题的重要组成部分。
2
The safety length to connect apparatus component and load cable was calculated and given.
文中还计算出与电器元件连接负载电缆的安全长度。
3
This paper introduces component parts, characteristics of countryside transport safety system, and a mathematical model of transport accident based on parameters from the main system components.