รถจักรไฟฟ้าดีเซลเปิดตัวปีใด?ไม่จำเป็นต้องใช้ทุกโต๊ะ
What is the year of introduction for the Electro-Diesel locomotive?It is not neccessary to use all the tables.
 table_name_64:  (introduced [ VARCHAR ] type [ VARCHAR) ]
SELECT introduced FROM table_name_64 WHERE type = "electro-diesel locomotive"