Vehicles may transport anhydrous ammonia.Logical formLearned from2 sentences. (Transfer operations) can be at some (ammonia systems).Logical formLearned from2 sentences. A (shut-off valve) can be on an (ammonia line).Logical formLearned from2 sentences. A (vent pipe) can be on an (ammonia line).Logical formLearned from2 sentences. Anhydrous ammonia may undergo an operation.Logical formLearned from2 sentences. Anhydrous ammonia can be from a (tanker truck).Logical formLearned from2 sentences. An (ammonia line) can be between valves.Logical formLearned from2 sentences. Inspectors may complain of effects of ammonia.Logical formLearned from2 sentences. An etool may consist of (ammonia receiving).Logical formLearned from2 sentences. An (ammonia refrigeration system) can be a process.Logical formLearned from2 sentences. Ammonia can be a source of nitrogen.Logical formLearned from2 sentences. (Ammonia emissions) may deposit to (surface waters).Logical formLearned from2 sentences. An (ammonia side stream) can be high.Logical formLearned from2 sentences. Studies may pertain-to (ammonia molecules).Logical formLearned from2 sentences. An increase can be in an abundance of ammonia.Logical formLearned from2 sentences.