Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE machine (Machine_series VARCHAR, machine_id VARCHAR)
TABLE: CREATE TABLE repair_assignment (machine_id VARCHAR, technician_ID VARCHAR)
TABLE: CREATE TABLE technician (Name VARCHAR, technician_ID VARCHAR)

### Question ###
Show names of technicians and series of machines they are assigned to repair.

### Accurate SQL ###

SELECT T3.Name, T2.Machine_series FROM repair_assignment AS T1 JOIN machine AS T2 ON T1.machine_id = T2.machine_id JOIN technician AS T3 ON T1.technician_ID = T3.technician_ID