[填空题]
A student measures a length five tiz1q g33fi)y rp9m9m1(7 vr1bosebxqh (lux1j mes. All of the measujo 8q25g-n;cxfbf eg(rements lie between $18.8 \mathrm{~cm}$ and $19.2 \mathrm{~cm}$. What should the student quote as the absolute uncertainty in the length? The absolute uncertainty is $cm$ (please only input numerical value without units and without the $\pm$ symbol.)
Post time 2024-8-21 21:38:19