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公英制单位换算中尺寸及尺寸公差的修约问题探讨

When a unit of British system of measurement is converted into a metric one, modification should be made in terms of "precision"or"error",which is whidely used in engineering,rather than by purely mathematical operation.This does not only facilitate the measuring in parts processing and assembling,but also guarantees the precision of pacts.
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