Combined with residential plot in Jiaozhou, it discusses requirement of health house in hardware from physiological demand and psychological demand, and points out it will become perfect including property management、service and cultural environment in plot.

This paper advances the general concept of safety system engineering for survival at sea, applies the ETA to qualitative analysis of survivor's safety system at sea,the conclusion being for reference of those who are working on that.

The survival at sea is one of the important parts of the safety system engineering at sea.

Because forest s ecological functions are becoming increasingly prominent in aspects of maintaining ecological balance, protecting biodiversity, preventing water-soil loss, checking winds and fixing sand, decreasing environment pollution, satisfying people s health and spirit, "Ecological requirement" to forest is exceeding "economic requirement" in China.