| 1. | German standard power outlet 德国标准插座 |
| 2. | German standard power plug 德国标准插头 |
| 3. | D . german standard methods for the analysis of water , waste water and sludge ; anions group d ; determination of cyanides 德国检验水废水和污泥的标准方法.阴离子 |
| 4. | German standard methods for the examination of water , waste water and sludge ; cations group e ; determination of iron 德国检验水废水和污泥的标准方法.阳离子组 |
| 5. | German standard methods for the analysis of water , waste water and sludge ; anions group d ; determination of borate ions 德国对水.废水和淤泥的统一检验法.阴离子组.硼 |
| 6. | D . 4 german standard methods for the examination of water , waste water and sludge ; anions group d ; determination of fluoride 德国检验水废水和污泥的标准方法.阴离子 |
| 7. | D german standard methods for examination of water , waste water and sludge ; anions group d , determination of nitrate ion 德国检验水废水和污泥的标准方法.第9部分:阴离子 |
| 8. | German standard methods for the examination of water , waste water and sludge ; cations group e ; determination of manganese 德国检验水废水和污泥的标准方法.阳离子e组.锰 |
| 9. | German standard methods for the examination of water , waste water and sludge ; anions group d ; determination of chloride ions 德国检验水废水和污泥的标准方法.阴离子组 |
| 10. | German standard methods for the examination of water , waste water and sludge ; anions group d ; determination of sulfate ions 德国检验水废水和污泥的标准方法.阴离子d组.硫 |