平方公里

It's very large, about 390 square kilometres, and it's a magic

它非常宽阔，大约有390平方公里。

It was an area of about 43 million square kilometres.

它的面积约有四千三百万平方公里。

She saw that the Island of Komodo is small:no more than 280 square kilometres.

她看到的科莫多岛屿很小：不超过280平方公里。

800 Square kilometres of ocean were polluted.

4，800平方公里的海洋受到污染。

When it blew up it flattened some 2,000 square kilometres (800 square miles) of forest.

它在进入2000平方公里（800平方英里）的森林时爆炸了。

It covers 56 square kilometres (22 square miles) and took more than 30 years to create.

整个工程历时30多年，占地56平方公里（相当于22平方英里）。

The size of cities by the year 2020 to 100 million people, 100 square kilometres.

城市规模到2020年为100万人，100平方公里。

The accident was one of the worst in history. More than 34,000 birds and 10,000 animals were killed. 4,800 square kilometres of ocean were polluted

这是历史上最严重的事故之一。34 000多只鸟和10 000多头动物死亡，4 800平方公里的海洋受到污染。

China is a country with an area of 9.6 million square kilometres .

中国领土面积达 960 万平方公里。

The test area of Formosat-2 image is Tainan,image level is Level 1A,image size is 12000pixel×16800pixel,square measure is 175.6km2.the research would use different areas and different number of ground control points with different distribution to test,and change the constant h when every test to get the best constant h.

测试的地区为台南市的福卫二号影像，影像的等级为Level 1A，影像大小为12000像元×16800像元，面积涵盖范围约175.6平方公里。并且会以分区测试以及不同分布和数量的地控点进行测试，再改变每一次计算时的微小常数h，以得到最佳的h值。

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。