Contingent valuation is based on surveys of the " disutility " of death at different ages .

条件价值评估是基于不同年龄段的“负效用”死亡的数项调查。

Assume also that putting up the tree and taking it down bring disutility , although in my experience this is not necessarily the case .

同时假定，把树装饰起来和拆掉都会带来负效用（尽管就我的经验来看，情况未必会这样）。

Evacuees are allowed to re-select their target exits with their movement during evacuation . In each exit choice , evacuees select exits , from which they pay the least perceived disutility for leaving .

在疏散过程中，疏散行人可以随着位置改变而重新选择其目标出口，在每次出口选择，他们选择支付最少感知疏散阻抗的出口。

The disutility of bibliographical information and its feedback mechanism .

书目情报负效应及其反馈机制。

Education disutility has its own specific regularity , because it has not been explored in the past , it is now at a fuzzy stage .

教育负效用的产生有其特定的内在规律性，只因过去没人去探寻它，所以，目前尚处于认识模糊阶段。