在制造业，有三种直接与赚钱有关的主要活动：开发、生产、和销售产品。没有这些活动，公司就不能存在。因此，从广义上讲，现场是指这三种主要活动的场地。-In manufacturing, there are three to make money directly related to main activities: development, production, and marketing products. Without these activities, the company can not exist. Therefore, broadly speaking, the scene is the venue for the three main activities.