The average population density of the world is 47 persons per square mile.
世界平均人口密度为每平方英里47人。
Women average 34 nerve fibers per square centimeter of facial skin, while men only average 17 nerve fibers.
女性在每平方的表面皮肤上平均有34个神经纤维，而男性只有17个神经纤维。
A landscape with an average of 45 people per square kilometre is ideal for sparking wildfires.
人口密度为45人每平方公里的风景区最容易发生森林火灾。
Some will be less than 30,000 square feet, about a sixth of the size of the average Wal-Mart store.
有些将会少于30000平方英尺，是普通沃尔玛商店的六分之一。
Some will be less than 30, 000 square feet, about a sixth of the size of the average Wal-Mart store.
有些将会少于30000平方英尺，是普通沃尔玛商店的六分之一。
They estimate the average concentration of plastic in this area is about 4,000 pieces per square mile, though it is as high as 250,000 pieces per square mile in some places.
据他们估计，这一海域的塑料垃圾平均密度大约在每平方英里4000块左右，一些海域的密度最高可达到每平方英里25万块。
The average size of the stores it has acquired is 8, 000 square feet; a typical out-of-town Asda might be six times larger.
Asda超市的平均店面面积为8000平方英尺，而一个典型的郊区Asda店可能会比平均面积大6倍。
The minimum 2009 sea-ice extent is still about 620, 000 square miles below the average minimum extent measured between 1979 and 2000 -- an area nearly equal to the size of Alaska, said Meier.
2009年冰川最小的面积大约是620000平方英里，几乎等同于阿拉斯加面积的大小，这低于在1979年和2000年之间测量的平均最小面积。
The technical definition of variance is the random variable's second central moment, the weighted average of the square of the differences from the expected value.
3方差的专业定义是随机变量的二次中心矩，与期望值之差的平方的加权平均值。
In Shanghai, the average residential price for October was 16,954 yuan per square meter, up 22% since January.
在上海，10月份的平均住房价格为16,954元，自1月份以来上涨了22%。
In Shanghai, the average residential price for October was 16, 954 yuan per square meter, up 22% since January.
在上海，10月份的平均住房价格为16,954元，自1月份以来上涨了22%。
Arctic temperatures have increased at almost twice the global average rate in the last 100 years; 70,000 square kilometres of sea ice (an area about the size of Ireland) is disappearing annually.
北极的温度上升率在过去的100年中比全球温度的上升率高出了一倍，每年都有7万平方公里的冰海消失，而这一面积相当于整个爱尔兰的面积。
Arctic temperatures have increased at almost twice the global average rate in the last 100 years; 70, 000 square kilometres of sea ice (an area about the size of Ireland) is disappearing annually.
北极的温度上升率在过去的100年中比全球温度的上升率高出了一倍，每年都有7万平方公里的冰海消失，而这一面积相当于整个爱尔兰的面积。
Our houses, on average, are bigger (over 2, 300 square feet, up 40 percent since 1980) with more cars in the driveway.
我们的房子更大了(超过2300平方英尺，比1980增长了40%)，私家车也变多了。
The average size of the stores it has acquired is 8,000 square feet; a typical out-of-town Asda might be six times larger.
Asda店面的平均占地约为8000平方英尺，市郊的店铺通常可能是这个的六倍。
In Beijing, the average price of a newly-constructed unit dropped to less than 20-thousand yuan per square meter, more than 10 percent lower than the same period last year.
在北京，一个新建单位平均价格降到每平方米低于2万元，比去年同期下降了10%。
The housing price per square meter surged one thousand yuan on average across the country last year and experts expect the housing price to drop in the second quarter/quarter two.
全国房价均价去年每平方米上涨一千元，专家预计第二季度以后房价会下降；
Surveys in most cities suggest the average living space is between 28 and 30 square meters per person.
大多数城市调查显示：人均居住面积为28- 30平方米。
The average size is 3,131 square feet, with a standard deviation of 655 square feet. (Standard deviation is a statistical measure of variance.)
平均大小为 3,131平方英尺，标准偏差为 655 平方英尺（标准偏差是一个描述差异的统计量度）。
Refined decoration garden villa Huxing average area of 42 square meters to 78 square meters.
精装修花园洋房户型平均面积在42平方米到78平方米左右。
And it's the exceptions that are fascinating because they are tricky to square with people's natural tendency for self-enhancement, i.e. most people think they are above average.
这些例外更有趣，那是因为他们狡猾的使人们的自然倾向和自我提高保持了一致。比如：大多数人认为他们好于普通人。
Still, each of the four newcomers was given a 60-square-meter unit, "which was way above average at that time".
不过，新来的这四个人还是每人分到了六十平米的单元，“远超当时的平均水平。”
The daily rate of decline for July was 77,000 square kilometers (29,700 square miles) per day, close to the 1979 to 2000 average of 84,400 square kilometers (32,600 square miles).
7月份每天下降率为7.7万平方公里(2.97万平方英里)，接近于1979年~ 2000年的平均值8.44万平方公里(3.26万平方英里)。
September/March (minimum/maximum) September Average Extent (millions of square kilometers) March Average Extent (millions of square kilometers)
九月范围均值 (百万平方公里)三月范围均值 (百万平方公里)
Estimation of GM (1, 1) model parameter usually adopts the least square criterion, but test of model precision often USES average relative error criterion.
估计GM(1,1)模型中的参数通常采用最小二乘准则，而在模型精度检验时又常采用平均相对误差。
Estimation of GM (1, 1) model parameter usually adopts the least square criterion, but test of model precision often USES average relative error criterion.
估计GM(1,1)模型中的参数通常采用最小二乘准则，而在模型精度检验时又常采用平均相对误差。
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