A safety system for a building has an excess gas flow detector\ncircuit for detecting gas flow in a gas supply pipe. The safety\nsystem can also include an... D Pokrajac,R Wood 被引量: 0发表: 2001年 Earthquake actuated shut-off valve This invention relates to automatic shut-off devices...
This robot has another different function --- it can change as the environment changes. Its main job is to search for any signs of life in places where human rescuers are unable to go. As well as a detector(探测器)that finds victims and detects poisonous gas, a camera is placed in the...