That is, a layer of inorganic material containing Si, Al, Sn and other elements is coated on the surface of the substrate to prevent the erosion of the substrate by AO
That is, the surface of the substation is coated with an inorgeable material containing Si, Al, Sn and other elements to prevent AO's erosion of the substation
In other words, a layer of inorganic material containing Si, Al, Sn and other elements is coated on the surface of the matrix to prevent the corrosion of Ao on the matrix<br>