There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照相法校正飞机无线电罗差不存在场地影响,但在实施过程中,又引入了一些其它影响测量精度的因素。

The influence of the semibreadth of light source upon the measurement accuracy of the concentration of the solution is primarily discussed and then a corresponding expression is given in this paper.

本文对光源的半宽度在测量某种溶液浓度时对其测量精度的影响进行初步地探讨，并给出一个相应的表达式。