residual content of extinguishing medium是什么意思

用法例句

Referring to the domestic and foreign standards of normal dry powder fire extinguishing agent, the concept of "least agent dosage" is employed to estimate anti-fire efficiency.

用NH_4H_2PO_4含量为95％的干粉灭火剂为主料，经超细化和表面防团聚改性处理，制得了不同粒度的超细微粒灭火剂试样；参照普通干粉灭火剂国内外的标准，提出了用最小灭火剂用量来表征灭火效能。