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1·The inhibiting property for BaSO 4 scaling of phosphoric acid esters of rice bran extract (p RBE) alone and compounded with other scale inhibitors is studied.

测定了磷酸盐化米糠提取液及其与其它阻垢剂的复配物对硫酸钡垢的抑制效果。

2·Characteristics of a ground aluminium diffuse plate at ultraviolate vacuum ultraviolate(UV VUV)and that of a BaSO 4 and a polytetrafluoroethylene (PTFE) diffuse plate at UV are described.

给出了正入射条件下铝漫反射板在紫外真空紫外波段的漫反射特性及硫酸钡和聚四氟乙烯（PTFE）漫反射板在紫外波段的漫反射特性；