频谱密度:初中 用英语怎么说?

来源:百度文库 编辑:查人人中国名人网 时间:2024/05/03 15:55:03
谢谢了

Junior high school;
Secondary school:
Middle school

外国人最容易理解的说法就是secondary school
小学:primary school
初中:sccondary school
高中:middle school
大学:university,college

junior school

junior high school

junior middle school

junior school