"Demand" and "quantity demanded" are two different concepts in Economi cs.
需求和需求量是经济学中两个不同的概念。
Conclusion The demand capsule suspension (10%cs) is effective against mosquito in field and should be generalized.
结论10%大灭微胶囊悬浮剂对蚊虫具有良好的滞留杀灭效果，值得推广应用。
Conclusion The demand capsule suspension (10%cs) is effective against mosquito in field and should be generalized.
结论10%大灭微胶囊悬浮剂对蚊虫具有良好的滞留杀灭效果，值得推广应用。
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