{HEAD ~ The degree} of hydrophobicity ratio of a hydrophobic silica is indicated by a value of {TAIL ~ methanol wettability} and is preferable to be less than 15 
{ HEAD ~ The degree } of hydrophobicity ratio of a hydrophobic silica is indicated by a value of { TAIL ~ methanol wettability } and is preferable to be less than 15
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH