问在MySQL中将UTF16转换为UTF8

EN

SELECT  Scania.GensetType, Scania.EngineType, Scania.Engine60Hz, Scania.Alternator, Scania.PriceEur
FROM Scania  
LEFT JOIN NordhavnGenset
    ON Scania.GensetType=NordhavnGenset.Alternator 
LEFT JOIN Generator
    ON Scania.Alternator=Generator.Alternator
LEFT JOIN Insulation 
    ON NordhavnGenset.Insulation=Insulation.Insulation
LEFT JOIN Klasse
    ON NordhavnGenset.Class=Klasse.Class
LEFT JOIN AirInletFilter
    ON NordhavnGenset.AirInletFilter=AirInletFilter.AirInletFilter
LEFT JOIN IP
    ON NordhavnGenset.Ip=IP.IP
WHERE (NordhavnGenset.MaxKva='46') and (Generator.Alternator='ECP34-1LN/4') and (Insulation.Insulation='F (90ºC/45ºC)') and (Klasse.Klasse='KRS\r') and (AirInletFilter.AirInletFilter='No') and (IP.IP='IP23');

Scania.Alternator=Generator.Alternator

#1267 - Illegal mix of collations (utf16_unicode_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation '='