单词	part(s)per million
释义	同part(s)per million-- ppm
随便看	sequester， sequestering agent， sequestrant sequestra sequestrable sequestral sequestrant sequestrant} sequestrant}--chelating agent {sequestering agent sequestrants sequestrant {sequestering agent sequestrant {sequestering agent-- chelating agent} sequestrant {sequestering agent; chelating agent} sequestrate sequestrated sequestrates sequestrating sequestration sequestration cyst sequestration dermoid sequestration of chip fracture sequestrations sequestrator sequestrators sequestrectomy sequestrene sequestric acid