For the equipments in the mine are specially needed fire and blast protection, the rescuing communication equipments are relatively large and heavy, affecting the rescue sufficiently carried out.

And the applying of SCA in communication equipments is under researching.

The paper analyzes the function and value of design and presents some design strategies for communication equipments.

Influence of natural ventilation on selection of ventilation equipment;

For purifying experiment space and reducing environment pollution,ventilation equipment of chemistry laboratory was researched,manufactured,designed and exploited over a long period of time and introduces the characteristics of several new kinds of ventilators.

Ward call system is a communication equipment used frequently in ward.

The paper mainly introduces Malaysia communication equipment market access rules.