The effective demand deficiency of countryside plays an important role on the effectivedeficiency since 1997.
1997年以来的有效需求不足中，农村的需求不足起了很大的作用。
2
It is an effective solution to overcome the deficiency mentioned above that introducing the harmonic drive technology into conventional motor driven by giant magnetostrictive material.
将谐波传动技术应用于超磁致伸缩电动机中，研制新型超磁致伸缩谐波电动机将可以有效克服这些缺陷。
3
Conclusion Minimally invasive surgery is effective to treat intracranial hematoma caused by delayed vitamin K deficiency in infants.