It is predicated that cultivated land will still in a rising stage in 2004-2020, but sustainable utilization elements which will effect cultivated land should be controlled.
并预测2004—2020年该市耕地资源可持续性仍呈上升趋势，但要注意控制影响耕地可持续性利用的因素。
Objective To establish a practical model for Wistar rat cochlea organ cultivated in vitro and observe the effect of hypoxia on the inner hair cells(IHC) and outer hair cells(OHC).
目的：建立耳蜗器官体外培养模型，观察缺氧对体外培养耳蜗内毛细胞（IHC）及外毛细胞（OHC）的影响。
As a typical agricultural and population province, slope dry cultivated land play a very important effect in agriculture production of Sichuan province.
四川是一个典型的农业和人口大省，旱坡耕地在农业生产中具有重要作用。
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