| 1. | There are four major steps in ammonia synthesis .
氨的合成主要经过四道工序。 |
| 2. | Phenol - formaldehyde mouldings - detection of free ammonia
酚醛模塑制品游离氨的检定 |
| 3. | Limit of ammonia emitted from the concrete admixtures
混凝土外加剂中释放氨的限量 |
| 4. | Removal of ammonia from drinking water by clinoptilolite
用沸石去除饮用水中氨的研究 |
| 5. | Methods of sampling and test for liquefied anhydrous ammonia
液化无水氨的取样和试验方法 |
| 6. | Power - operated pumps for anhydrous ammonia and lp - gas
用于液化石油气和无水氨的动力操作泵 |
| 7. | Determination of free ammonia in phenol - formaldehyde moldings
苯酚-甲醛树酯模制件中游离氨的测定 |
| 8. | Plastics - phenol - formaldehyde mouldings - detection of free ammonia
塑料.酚醛模塑件.游离氨的检验 |
| 9. | Air quality . determination of ammonia . ion selective electrode method
空气质量氨的测定离子选择电极法 |
| 10. | Plastics . phenol - formaldehyde mouldings . detection of free ammonia
塑料制品.酚醛树脂模制件.游离氨的检测 |
