求翻译：或者说决定着各个中间环节的利润空间。在国外，农产品从采摘到运至超市出售，是一个品质不断提高的过程，但目前我国的情况却常常是品质不断下降的过程。因为在生鲜食品的采摘、分级、包装、运输等环节上缺乏相应的技术的有效支持。，是什么意思？

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Or to say that the middle part of the margins. In a foreign country, and agricultural produce from picking to sell to supermarkets, is a continuous improvement process, but it is currently in our country are often quality is declining. Because of the and fresh foods in picking, grading, packaging, t

Or said is deciding each middle link profit space.In overseas, the agricultural product from picks to transports to the supermarket sell, is process which a quality enhances unceasingly, but the present our country's situation frequently is actually a process which the quality drops unceasingly.Beca

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