我国研制和生产的各种专用汽车(包括改装汽车,以下同),多年以来没有制定统一的编号、定型和质量标准。这几年专用汽车品种、数量和生产企业,都有了很大发展。各厂自行确定编号,自行制定定型试验大纲和质量标准,以致造成编号混乱,企业和产品代号大量重复、混淆,编号含义不清,定型和质量要求相差很大。甚至各种专用汽车分类称呼也不相同,有的一种专用汽车有多种称呼,理解各不相同。给专用汽车生产、使用和管理都带来很大困难。大家都迫切 For a long time, various special vehicles (including modified cars, the same ones as below) developed and produced in China have not formulated unified code, typesetting and quality standards for many years. In recent years, special vehicle varieties, quantities and manufacturing enterprises have made great progress. Each plant to determine its own number, to develop their own stereotypes and quality standards, resulting in confusion numbers, business and product code a large number of repetitions, confusion, the number meaning is not clear, there is a big difference between the stereotypes and quality requirements. Even a variety of special car classification call is not the same, and some have a special car has a variety of titles, understand different. Special vehicle production, use and management have brought great difficulties. Everyone is urgent