sodium thiosulphate meaning in English

硫代硫酸钠

To the working strength developer add sodium thiosulphate crystals ( hypo )
加强显影加入硫代硫酸钠晶体（海波）。
Pulps for paper . quantity determination of sodium thiosulphate in pulp liquors for papermaking
纸浆.制浆溶液中硫代硫酸钠含量测定
Chemical products . photographic grade chemical products . sodium thiosulphate , crystalline
化学产品.摄影用化学产品.结晶硫代硫酸钠
Determination of nitrate nitrogen in fertilizer by reduction of sodium thiosulphate instead of chromium power
用硫代硫酸钠代替铬粉还原测定肥料中硝酸态氮