一增一减
一增一减-
水产品部门结构变化与产量增长具有一增一减的变化规律，且增加和减少的幅度逐渐变小；
There is a change law one increase and one decrease between the structure change and economic growth of Aquaculture and the trend of change is decreasing ;
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进口卷烟销售量增加和国产卷烟销售量减少，这一增一减的变化将直接造成国产醋纤丝束需求量下降。
The increase of the sales of imported cigarettes and the decrease of the sales of domestic cigarettes will result directly in reduced demand of domestic acetate tow .
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发现期间发生了显著变化，主要表现为城镇用地和水田的一增一减。
It is found that the land cover has changed significantly , mainly for " one increase and one decrease " - urban land increase and paddy field decrease .