用化学

• Photography chemicals - sodium formaldehyde bisulfite , anhydrous
  摄影用化学药品.无水甲醛合亚硫酸氢钠
• Chemicals used for treatment of water intended for human consumption . chlorine
  饮用水处理用化学品.氯
• Photography chemicals - sulfuric acid
  摄影用化学药品.硫酸
• They had almost chemically to concoct it in their heads
  他们差不多在头脑里用化学方法调制他们的谈话。
• Chemical products for industrial use . determination of explosion risk
  工业用化学制品.有爆炸危险的测定
• Chemicals used for treatment of water intended for human consumption . polyamines
  饮用水处理用化学品.聚胺
• Standard practice for sealing sewer manholes using chemical grouting
  用化学灌浆密封污水道检查孔的标准规程
• Using multi - media technology to improve teaching efficiency of medical chemistry
  医用化学实验教学改革初探
• Names for chemicals used in industy
  工业用化学品命名
• Don ' t clean it with chemic reagent , such as solvent and thinner
  不要用化学试剂清洗，否则回引起溶解或稀释。