occurrence area造句怎么写
- 造句
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Recent years the occurrence area of rice water weevil is extending increasing with a certain law and harm character.
The occurrence area and species-group density was closed with water level fluctuation and flood time.
The dry air incursion of middle level of western rainstorm make the cold dry air to be rapidly trans port the convective strom occurrence area, which leads to thermo-inversion layer.
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造句 occurrence
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