土地和废水污染标准溶液2, Ground & Waste Water Pollution Standard Solution 2

溴化钾晶体光学盘, Potassium bromide crystal optic disc

氟化钡晶体光学盘, Barium fluoride crystal optic disc

氟化钙晶体光学盘, Calcium fluoride crystal optic disc

溴化钾晶体光学盘, Potassium bromide crystal optic disc

氯化银晶体光学片, Silver chloride crystal optic disc

氯化钠晶体光学盘, Sodium chloride crystal optic disc

溴化钾晶体光学长方体块, Potassium bromide crystal optic rectangle

光学矩形氯化钠晶体, Sodium chloride crystal optic rectangle

溴化钾小压片, KBr little pellet press