two-phase five-wire system

This NC system of roll grinder is made up of an IPC, a PMAC and its accessories, five AC servo drivers and motors, two DC transverters and DC motors.

该轧辊磨床数控系统由以下几个部分组成：一台IPC机，一套PMAC卡及其附件，五套交流伺服驱动器及交流伺服电动机，两套直流调速装置和直流电机。

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Using this software and the specially outfitted testing system hardware, we have completed test and analysis projects, such as two of State Nature Fundation projects, six State Eighth Five-year Plan key technology projects, four ministry level grade projects and one international cooperation projects.

利用该软件及专门配置设计的测试系统硬件，先后完成了国家自然基金项目2项，国家八五攻关项目6项，部级项目4项，国际合作项目1项等重大实验任务的测试与分析。

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This thesis interpreted the strategy of the developing class teaching of mathematics in colleges in five aspects and outlined the system of this policy with one goal, two main lines, three forms, four principles and five standards of evaluation.

本文主要从五个方面阐述了大学数学发展性课堂教学的策略，提出了一个目标，二条主线，三种形式，四项原则，五个评价标准的策略系统。

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