求英译汉,高手帮帮忙啊,小弟拜谢了,不要自动翻译,多谢多谢hemovabledynamometercarriagerailbrakesshallbedesignedtoholdthecarriagesagainstthemaximumtractiveforceonthecarriagewhilethedynamometersareoperating

　　求英译汉,高手帮帮忙啊,小弟拜谢了,不要自动翻译,多谢多谢

　　hemovabledynamometercarriagerailbrakesshallbedesignedtoholdthecarriagesagainstthemaximumtractiveforceonthecarriagewhilethedynamometersareoperating.ThebrakesshallbeinterlockedwiththeDynamometerSystemtoenableoperationofthedynamometeronlywhenthebrakesareapplied.Thebrakesshallformpartofthemovabledynamometercarriageoperatingsequence.

　　应该是这个上面的错了

　　Themovabledynamometercarriagerailbrakesshallbedesignedtoholdthecarriagesagainstthemaximumtractiveforceonthecarriagewhilethedynamometersareoperating.ThebrakesshallbeinterlockedwiththeDynamometerSystemtoenableoperationofthedynamometeronlywhenthebrakesareapplied.Thebrakesshallformpartofthemovabledynamometercarriageoperatingsequence.