估计一下在秤量，使用滴定管和确定终定位置的不确定度。用这些值计算误差传播而且跟所观测值比较一下。

Estimate what you think the uncertainty is in weighing, using the buret, and in endpoint location. Do error propagation from these values and compare with the observed precision.

youdao

文中基于子空间类测向方法，在远场情况下，提出了一种新的估计阵元位置误差的有源校正算法。

In the case of far field sources, based on the subspace direction-finding technique, a new method for active calibration of array shape is presented.

youdao

当惯性陀螺工作在方位姿态时，有一定的斜坡漂移，它将引起惯性导航系统中的严重的航向和位置误差，所以有必要估计和补偿它。

There exists a slope drift in an integral gyro when it is used as an azimuth gyro, which may cause serious heading and position errors in the Inertial Navigation System (INS).

youdao