reducing agent [助剂] 还原剂 ; 何谓还原剂

water reducing agent [建] 减水剂

alkaline reducing agent 碱性还原剂

permeability-reducing agent 防渗剂

resistance reducing agent 降阻剂

shrinkage reducing agent 减缩剂

organic reducing agent 有机还原剂

air reducing agent 除气剂

Efficient pumping water-reducing agent 高效泵送减水剂