个人在观察上的误差;个人观察容许误差
Applying it on the transit instrument, the personal equation was significantly reduced and the accuracy of the time determination was improved.
应用于中星仪观测时,大大压缩了人差,提高了测时精度。
customs vary widely, and the "personal equation" is a most important factor, of which mere theory takes no account.
各地风俗相去甚远,但“个人见解”是最重要的,这一点很少有理论注意到。
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