π¬ππ
π§ͺπ§β¬οΈβ¬οΈ
π¬π©Έβ‘οΈ
π^π₯π¬π§ͺ
π¬π‘οΈβοΈπ§
ππ¬
π§ͺπ§π’
βοΈπ¬ππ’
π¬πC
π§ͺπ¬β‘οΈπ’
πβοΈβοΈ
βοΈγβ―
π¬π¦Άπ
#scientific measurement #units #standard #dimensions #technical drawing