At present, there are still a large number of bricklayers, rebar workers, boiler workers, painters and other types of workers in China's blue-collar jobs. Due to the influence of professional "discipline", only relevant ones can be found in the professional directory of secondary vocational education in China. Professional names with a strong "discipline", and these professional names make it difficult for students to associate future corresponding employment positions with the above-mentioned blue-collar positions, resulting in "discounts" for graduates who truly enter the above-mentioned blue-collar positions. What does this text mean? ['The professional catalog of secondary vocational education in China needs to be adjusted according to actual job needs.', 'Professional education in secondary vocational education in China cannot train students to enter blue-collar positions.', 'Bricklayer, steelworker, boiler worker and other positions are not traditional blue collar workers.', 'The disconnection between the professional name setting and the actual educational content leads to difficulties in employment for secondary vocational students.']