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Nter on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the world s cultivable land .

现在，中国面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

The two major challenges facing China today center on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the world' cultivable land.

现在， 中国面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的 12 亿人口。

The two major challenges facing China today center on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the world's cultivable land .

现在，**面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

The two major challenges facing China today center on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the world's cultivable land .

研 现在，中国面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

The two major challenges facing China today center on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the worlds cultivable land .

现在，中国面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

The two major challenges facing China today center on maintaining sustained economic growthfeeding its growing population of over 1.2 billion people with only seven percent of the world's cultivable land .

现在，中国面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

The two major challenges facingChinatoday center on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the world's cultivable land.

现在，中国面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

The twomajor challenges facing China today center on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the world's cultivable land .

现在，中国面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

The two major challenges facing China today center on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the world's cultivable land .

现在，中国面临的两大挑战是保持持续的经济增长和*世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

Bull; 56. The two major challenges facing China today center on maintaining sustained economic growth and feeding its growing population of over 1.2 billion people with only seven percent of the world's cultivable land .

现在，中国面临的两大挑战是保持持续的经济增长和靠世界上仅仅百分之七的可耕地养活仍在增长的12亿人口。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。