But it is still the major cause of slowness in using operation research.

然而，这仍是作业研究应用缓慢的主要原因。

Both social economic development and employment of college students need to set up the public elective course of operation research in universities.

在高校开设“运筹学” 公共选修课，既是大学生就业的需要，更是经济社会发展的需要。