Tổng quát
$X=X_{tb} + \Delta X$
https://ductt111.files.wordpress.com/2011/10/bk11.pdf
https://ductt111.files.wordpress.com/2011/10/bk2.pdf
https://ductt111.files.wordpress.co...3a1c-c491e1bb8bnh-sai-se1bb91-phe1baa7n-3.pdf
P/S: Đây là trang về thí nghiệm vật lý của BKHN
$X=X_{tb} + \Delta X$
https://ductt111.files.wordpress.com/2011/10/bk11.pdf
https://ductt111.files.wordpress.com/2011/10/bk2.pdf
https://ductt111.files.wordpress.co...3a1c-c491e1bb8bnh-sai-se1bb91-phe1baa7n-3.pdf
P/S: Đây là trang về thí nghiệm vật lý của BKHN