| ammonia plant | 0.79 | It is one of three ammonia plants owned by PIC. | ||
| ammonia tank | 0.59 | It put both the ammonia storage tank and the transmission line underground. | ||
| ammonia solution | 0.53 | ...carbonate of ammonia solution. | ||
| ammonia level | 0.46 | Later, ammonia levels returned to normal, officials said. | ||
| ammonia production | 0.46 | The high rate of H pylori ammonia production in uraemic patients should accentuate any ammonia induced effects. | ||
| ammonia fume | 0.33 | It is dangerous to inhale ammonia fumes. | ||
| ammonia gas | 0.33 | The explosion knocked out four nearby electricity generating stations and sent up a cloud of ammonia gas. | ||
| ammonia leak | 0.33 | Ammonia leaks can cause serious environmental risks. | ||
| ammonia coolant | 0.26 | They installed a bulky container filled with ammonia coolant to the space station. |