sugar - acid proportions
英
美
- acid n.酸;酸性物质;迷幻药adj.酸的;酸性的;尖酸的
- proportions n.大小名词proportion的复数形式.
- sugar n.糖,食糖;糖缸;甜言蜜语,阿谀奉承;宝贝,心肝v.使甜;在...上撒糖
- The concentration ofL-serine and formaldehyde were determined by chromatic acid colorimetry.
采用铬变酸比色法测定甲醛和丝氨酸浓度。