State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of alternate electrical voltage to 1000 V in the frequency range from 1-10 in minus 2 degree up to 2-10 in 9 degree Hz
Vaccine against sheep-infections enterotoxaemia, anaerobic lamb-dysentery and pig-necrotic enteritis caused by clostridium perfringens types C, D. Technical requirements and control methods
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