如何将此SQL转换为ASP.NET MVC的LINQ？

I have this SQL statement:

我有这个SQL语句:

select 
    table1.DIRECTORATE_ID, 
    table2.PLA_NAME + '//' + table1.ENGLISH_DIRECTORATE_CODE as EngCode
from table1
inner join table2 on table1.PLA_ID = table2.PLA_ID order by EngCode
selec