首先，没有任何一条医疗支出曲线有下降的趋势。
First and foremost, neither bends the health-cost curve downward.
净枯竭是指进行更多开发钻井、修井和其他支出以提高产量后的最终递减曲线。
Net depletion is the ultimate decline curve even after conducting more development drilling, workover and other expenditures to increase production.
通过构建一个基于向下倾斜劳动供给曲线的就业决定模型，解析出一种称之为“支出约束引致型失业”的新类型。
The thesis constructs an employment decision model based on a downward-sloping labor supply curve, and parses a type employment called by the author as "expenditure-constraint-causing unemployment".
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