Approach of calendar life extension for aircraft structures;

This article briefs the present status and technical characteristies of various kinds of hot spraying techniques,and details the application status of supersonic arc spraying (SAS) technique in the life extension and restoration of power plant equipment,such as on the steel structural components,"four tubes" exposed surface,fan wheel,blades of steam turbines.

The identification of the weak points is essential for inspection and life extension repair of the structures.

This paper introduces the fatigue test of full scale aeroplane wings which serves as the basis of life lengthening analysis for aged aeroplanes.

This paper discusses the problem from the meaning, the standard and six suggestions of such people s health and longevity, hence concludes that the health and longevity of the aged is one of those important social systems engineering.

Health and longevity are radical goals for life-cultivation of human being.

The essential element of the human body & good health and a long life;

With the improvement of peoples life, most people pay close attention to the topic about good health and a long life, and nutrition quality.