Workers say this kind of dye permeates force extremely strong, should besmear gently only arrive with respect to very can fast ooze in stone, but the stink just can volatilize for a long time.

• 工人们说这种染料渗透力极强，只要轻轻一涂就能很快渗到石头里，但臭味却要很长时间才能挥发掉。