设计: devise; project; plan; desig ...开挖: excavate; working线: thread; string; wire开挖线: excavation line; excavatoin line; line of excavation最大开挖线: pay line最终开挖线: final excavation limit设计开: r&d research & design设计开发: design and development; design development设计开发部: r&d research & design设计开发策划: design and development planning设计开发车间: design development shop设计开发工具: design development tool设计开发记录: design development record,ddr设计开发评审: design and development review设计开发确认: design and development validation设计开发输出: design and development outputs设计开发输入: design and development inputs设计开发验证: design and development verification设计开发中心: design and development centre设计开发更改控制: control of design and development changes坏工业设计开发中心: engineering industrial design development centre设计开发部 来源:中国电机网: r&d research &design开挖: excavate; working◇开挖机 backactor; drag shovel; 开挖设备 excavation equipment; 开挖机械 excavation machinery伏特计开关: voltmeter switch估计开支: estimated expenditure