从应用效果看，桥面采用钢纤堆混凝土铺装层具有较好的社会效益和经济效益。
Its application to the deck pavement construction will meet its social and economic benefits.
从微观层面上看，非正规就业对正规就业具有替代效应：对用人单位而言，非正规就业能够带来更多的经济效益；
From microscopic visual angle, informal employment can take place of formal employment: as to the employer, informal employment brings more benefit;
这样做，不仅从社会效益角度上看是必要的，而且从经济效益角度上看也是值得的。
It is necessary to do so from the viewpoint of social benefits and it is worthy of our efforts from the viewpoint of economic benefits, too.
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