测量的误差幅度为2.5%。
他们有5%误差率。看看这个目录，约翰。
They have a 5% margin of error. Look at this catalogue, John.
他们已经制造出能够在受控的工厂环境中识别出几分之一毫米误差的机器人。
They have built robots that can recognize the error of a machine panel by a fraction of a millimeter in a controlled factory environment.
误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。
One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.
中国还在经纬仪附近发射了气象气球来测量大气温度和压力变化，以更好地估计折射误差。
The Chinese also launched weather balloons near their theodolites to measure atmospheric temperature and pressure changes to better estimate refraction errors.
细胞生物学家大卫·沃克斯表示，人们期望专业科学家知道如何分析数据，但令人担忧的是，在已发表的研究报告中，统计误差非常普遍。
Professional scientists are expected to know how to analyze data, but statistical errors are alarmingly common in published research, according to David Vaux, a cell biologist.
我们所有的地图误差都非常大。
隧道两端在中间相接时，只有几英寸的误差。
When the two ends of the tunnel met in the middle they were only a few inches out.
它们能长到12英寸高–误差不超过2英寸。
They grow to a height of 12 in. – give or take a couple of inches.
通过测量信号在卫星和天线之间传播所需的时间，汽车的位置可以被锁定在100米误差之内。
By measuring the time required for a signal to travel between the satellites and the antenna, the car's location can be pinned down within 100 meters.
它一定非常古老，大约有40亿年，有几亿年的误差。
It must be really old, about 4 billion years, give or take a few hundred million years.
例如，我们使用的每年误差不超过1分钟的石英水晶钟表和手表。
For example, we have Quartz crystal clocks and watches accurate to within one minute a year.
从太空中，它们可以分辨出你在地面上的位置，误差不超过10米。
From space, they can tell where you are on the ground, with a difference of no more than 10 meters.
由于金星离地球更近，所以它的视差角会更大。哈雷计算出，利用金星可以测量出太阳与地球之间的距离，误差为五百分之一。
As Venus was closer to the Earth, its parallax angle would be larger, and Halley worked out that by using Venus it would be possible to measure the Suns distance to 1 part in 500.
测量之间的差异与恒定测定误差无关。
The difference between the measurements is independent of a constant determinate error.
我们知道这与实际测量存在误差。
通过包含更多条件来减少统计误差。
我们可以试着最小化这个平方误差。
Well, we could try to minimize a square error like we did before.
科学误差一经识别，即可修改。
When scientific errors are identified, corrections are made.
其正负误差的幅度为3个百分点。
It had a margin of error of plus or minus 3 percentage points.
非常小，我们称其为相对误差。
我们允许30厘米的误差吧。
非常量误差方差或异方差性。
使误差小到适当的程度要遵循的步骤。
因此，从某种意义上说它取决于误差棒。
误差的承受范围是多少呢？
误差的承受范围是多少呢？
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