负贡献的英文

• negative contribution

• 负:    burden; load
• 贡献:    contribute; dedicate; devote ...
• 负贡献毛益:    negative contribution margin
• 贡献:    contribute; dedicate; devote; contribution 贡献大小 size of one's contribution; 贡献自己的一份力量 contribute one's share; do one's bit (for); 对某事有所贡献 contribute to sth.; 他决心把毕生精力贡献给科学事业。 he is determined to devote his life to sicence. 中国应当对人类作出较大贡献。 china ought to make a greater contribution to humanity
• 纯贡献:    net contribution

例句与用法

1. Total factor analysis of health production function indicates that there has been great changes in influential factor of the health since the open and reform policy was implemented : ( 1 ) economic factors promote the development of health ; ( 2 ) urbanization improves the health , but the increase of female proportion reduces the health level ; ( 3 ) in the sanitation factors , the increase of doctors reduces the health , the elasticity of the sickbeds is negative ; ( 4 ) education significantly improves the health ; ( 5 ) the living factors exhibit certain negative contribution to health
   全因素分析表明，改革开放后，健康的影响因素发生了深刻的变化： ( 1 )经济因素对健康具有促进作用； ( 2 )社会因素中，城市化率提高促进了健康的改善，女性比例的提高反而降低了健康水平； ( 3 )卫生因素中，医生和门诊的增加引起健康水平总体下降，而病床数起到了改善健康的作用，疾病预防对健康正贡献的时滞性减弱； ( 4 )教育因素对健康的促进作用明显； ( 5 )生活因素对健康表现出一定的负贡献。