...×期望值(Expectance) 效价：某种行为产生的结果，这种结果对满足人需求所表现出的意义（效能、主观评价） 。 期望值(Expectance)：实现这种结果的可能性。
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Life expectance 预期寿命
alcohol expectance 饮酒期望
self-efficacy expectance 自我效能期待
Happy Life Expectance 幸福生活预期
Motive and Expectance 动机和预期
When the wave of speed of a cutter is decreased, the working accuracy of the crank-shaper, the life expectance of the cutter and the smoothness of the working surface can thus be increased.
减小刀具速度波动，可以提高牛头刨的加工精度、表面光洁度及刀具的寿命。
Result After the treatment, the patients' clinical symptoms were relieved. Average post-operational life-expectance wa directly related to the way of intervention and affected by multiple factors.
结果介入治疗后的患者临床症状明显改善，术后平均存活期与介入治疗的方法有直接关系，并受综合因素的影响。
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