certaintyn.确定；确实的事情certainty system theory确定性系统理论certainty factor algebra置信度算法certainty of measurement测量精度Certainty Factor forecast可信度联想certainty and uncertainty肯定与不肯定certainty equivalent value确定性等值法certainty factor reasoning可信度推理certainty equivalency principle[计] 确定性等价原理certainty and valuewise independence确定性与值态的独立性certainty level of directional fields方向场置信度