7Barthlott W, Neinhuis C. Purity of the sacred lotus, or escape from 'ontamination in biological surfaces[ J]. Planta, 1997, 202( 1 ) : 1-8.
8Garbab L I, Sher E, Shneck R. Structural mechanism of action of some additives to lubricant[J]. Industrial Lubrication and Tribology, 1968, 52(6) : 186-191.
