CALIBRATION the operation that is required to determine the accuracy of measuring and test equipment.

确定量度和试验设备准确性的必需操作。

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The higher accuracy of measuring the Doppler frequencies, the less error of the aperture distribution.

多普勒频率的测频精度愈高，反演口径分布的误差愈小。

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The off-centre of the camshaft which is mounted on the detector affects the accuracy of measuring the CAM outline dimension.

凸轮轴在检测仪上的安装偏心，影响凸轮轴上凸轮廓形尺寸的测量精度。

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When it's bolted onto the Blanco Telescope at the Cerro Tolodo Observatory in Chile next month the 570-megapixel Dark Energy Camera will survey some 300 million galaxies in the southern sky, measuring the speed at which they are moving apart with phenomenal accuracy, and giving the best description yet of the accelerating expansion of the Universe.

BBC: Getting the measure of dark energy