单词	双列滚珠轴承
释义	双列滚珠轴承double row ball bearing
随便看	production phase production, photo-star production-- photo-star production pile production plan production planning production planning and control strategies production planning control system production planning illustration production platform production policies production possibilities frontier production possibilities frontier (ppf) production possibilities set production possibility curve production possibility curve (ppc) production-- primary production priority list production process production process control production program of vehicle maintenance production proration production pyramid production quality authentication production quantity