maintenance requirement
1.To define the parameters of the model, correlation coefficient method was proposed based on goal programming principles with the hypothesis of linear correlation between maintenance requirement and maintenance technique and self-correlation among various maintenance techniques.
2.From the function unit level of equipment, it introduces the theory of continuous attributes decision-making support system based on rough set and applies to knowledge representation of the maintenance-requirement identification, rules acquiring and maintenance-requirement decision making.
3.If N excretion is considered as maintenance requirement of weaned sika deer when they are fed protein free diet, the maintenance requirement of deer at this stage will be 4.808 g N or (4.808x6.25) g crude protein.
4.Dietary nutrient digestion and nitrogen metabolism in the experimental animal were determined, and maintenance protein requirement for weaning sika deer was suggested.
5.Their energy requirements are up to 3 times that of an adult maintenance energy requirement （MER); from weaning to 3 months it is 2-3 x MER; 3-6 months 1.5-2 x MER.
8.In order to ensure to process regularly the daily maintenance management, this paper is based on the theory and method of database design and the theory of pavement management system, combining the application environment and operation flow of the expressway maintenance system, bringing forward the four stages of the expressway maintenance system design which are the requirement analysis of consumers, conception framework design, logic framework design and physical framework design, scheming out an optimum database mode applied to all kinds of expressway maintenance systems, and establishing a common database application system, so that the expressway maintenance system can evaluate the pavement performance, forecast the pavement performance and make decisions of the pavement maintenance.
9.Based on the requirement of maintainability design, the necessity of studying on DFA/D oriented for maintenance is put forward.
10.The construction background and requirement of remote maintenance system based on IP technology are introduced,and its feasibility is studied.
