【化】 铅试纸; 铅试纸四甲基对二氨基苯基甲烷的乙酸溶液

TETRA-ETHYL

tetra-O-acetyl pentaerythritol; pentaerythritol tetraacetate

EDTA Tetra sodium

nulli-tetra compensation【遗】

tetra-alkyl arsonium chloride

tetra-amylose

tetra-erythrin

2，3，4，6-tetra-O-acetyl-β-D-glucopyranosylisothiocyanate