请翻译！高分！在线翻译勿扰！~一定追加分数

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2.1 如果申请方曾经营客车或车辆相关行业，A=新车，B=配件，C=旧车，三类即可。
2.1 If the requestor side has already been involved in passenger cars and other industries related to vehicles, A(new cars), B(fittings),and C(used cars) are available.

如果申请方未曾经营客车或车辆相关行业，A、B、C等分别代表2.1.中列出的产品，请务必列出所有产品。
If the requestor side has never been involved in passenger cars and other industries related to vehicles, be sure to list all the products mentioned in 2.1 above, in which class A.B and C respectively represent different products.

新车销售毛利率=(新车销售净营业额–销售成本)/新车销售净营业额 x100%
gross profits on sales of new cars=(net turnover on sales of new cars - costs of goods sold)/ net turnover on sales of new cars x100%

工时费收入毛利率=(工时收费–人工成本)/工时收费 x100%
gross profits on incomes from charges of working-hours=(charges of working-hours - costs of labors)/ charges of working-hours x100%

配件销售净毛利率=(配件销售净营业额–配件销售成本)/配件销售净营业额 x