优势农产品产业带是一把“双刃剑”，既具有正面经济效应，又具有负面经济效应。
Being a double edged sword, advantageous agricultural belts have both positive and negative economic effect.
外资银行的入驻，给我国市场带来了一定的金融经济效应，同时又使我们面临一定的负面影响。
The entrance of the foriengn investment banks will bring about certain financial economic effect, at the same time, it has some side effect.
现行的国民经济核算制度只反映了经济活动的正面效应，而没有反映其负面效应，它是不完整的、有局限性的。
The current national economy that checks the positive effect reflects economic activities of the system, but doesn′t reflect its negative effect, which is incomplete and limited.
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