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phs 短語和例子P.H.S.=1.Public Health ...

phthalein

Effect of bifidobacteria on esophageal ph and it ' s significance 值的影響及臨床意義

Characterization of sludge . determination of ph - value 淤泥的特性表示. ph值的測定

Verification regulation of verificating meter for ph meter Ph計檢定儀檢定規程

Ammonium nitrate - method for measurement of ph value 硝酸銨.第3部分: ph值測定方法