研究一类特殊的本原双色有向图，其未着色的有向图包含两个圈。
Special primitive two-colored digraphs whose uncolored digraph consist of two cycles are considered.
介绍了光电测微系统的基本原理及其构成，分析了该系统的关键环节即聚焦伺服系统，建立了音圈电机的数学模型。
The focus servo system of the OM is analyzed and the mathematical model of the voice-coil motor is presented.
详细介绍了单圈绝对式编码器的基本原理和理论依据，具体给出了系统硬件设计方法。
In this paper, the fundamental principle and theoretical basis of the single_ring absolute encoder are specified, and the system hardware design is illustrated. The experimental results show that...
介绍了光电测微系统的基本原理及其构成，分析了该系统的关键环节即聚焦伺服系统，建立了音圈电机的数学模型。
This paper deals with the open system of numerical control based on Windows98, mainly discussing the interface module , the manage module and the servo module.
介绍了光电测微系统的基本原理及其构成，分析了该系统的关键环节即聚焦伺服系统，建立了音圈电机的数学模型。
This paper deals with the open system of numerical control based on Windows98, mainly discussing the interface module , the manage module and the servo module.
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