Japan is a major importer of U.S. goods and services, and particularly of expensive advanced-technology products, such as jet engines, numerically controlled machine tools, and biotechnology products.

日本是美国货物与服务，尤其是价格较高的高科技产品，如喷气发动机、数控机床和生物产品的主要进口国。

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With numerically controlled machining processing as objective for study, by the use of simulation software technology, the paper aims to test and verify the process on computer.

本文以数控车削加工为研究对象，利用软件仿真技术，在计算机上实现对数控加工程序的验证。

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With the computer control technology, the teaching system of arc welding robotic numerically controlled positioner is designed and realized.

本文采用微型计算机控制技术，设计实现了弧焊机器人用数控焊接变位机的示教再现系统。

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