数控系统是机床自动化的重要组成部分，其性能直接影响到加工的精度、效率及生产企业的效益。
CNC system is an important component of machine tool automation, and the capacity directly affects the machining accuracy, efficiency and the benefit of the production enterprise.
布莱克说：“他们提高了生产效率，改良了作物品种，并运用诸如免耕直播及全球定位系统等手段改进耕作方式。
They are getting a lot more efficient; they have a lot better crop genetics and agronomic practices like no-till farming and things like GPS [satellite-dependent global positioning system].
在其他大多数行业，提高生产效率的新技术帮助降低生产成本：这就是为何文字处理机能取代打字机，传真(及后来电子邮件)能取代电报。
In most other industries, new more productive technologies drive costs down: thus the word processor replaced the typewriter, and the fax (and then E-mail) replaced the telex.
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