Research shows that , in modern schools , the devisal of efficient systems and perfect mechanism should keeps to principles as follows .

研究表明，在现代学校，有效的制度与完善的机制的设计要遵循以下原则。

Especially for the transmitting array , this novel method gives the advantages of reducing the varieties of modules and devisal costs , and is suitable for engineering application .

尤其对于发射阵而言，该方法有利于减少组件品种和设计成本，适于工程应用。