INDEXI. Principle introduction2II. Using environment2III. Main features and parameters2IV: Structural features explanation3V. Operation instruction4VI. Maintenance and matters needing attention7VII. Regular failure treatment9VIII. Annex11I. Principle introductionJYQ-IV air biological sampler is a kind of highly effective air biological sampler with multi-hole. It is designed according to the principle of particle bombardment and isokinetic sampling, directly samplin
