Principle of teacher priority emphasizes that in the devisal of school system and mechanism, the factor of teachers shall be placed on the top.

教师优先的原则强调：在学校机设计的过程中，要把教师这因素放在第位。

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，该方法有利于减少组件品种和设计成本，适于工程应用。