By using the experiment equipments designed and manufactured by us, the CO?2 gas was charged to suffocate and kill the grain insects(Rhizoptha Dominica Fabricius and Sitophilus Oryzae Linnaeu), to protect the grain.

• 利用自行设计的试验装置,充入CO2气体使储粮害虫(谷蠹与米象)窒息死亡,以达到杀灭粮食害虫的目的。