商业等级的英文

class of trade

commercial class

• 商业:    commerce; trade; b ...
• 等级:    grade; rank
• 商业等级钢:    commercial quality

例句与用法

1. Professonal grade , commercial grade for reed relays , automotive applications , cellular phone , proximity switches , game and toys , security system
   用于干簧继电器、汽车设备、程控电话、相连开关、玩具以及安全系统的专业、商业等级的干簧开关。