利用AFC系统相轨迹图分析平衡型a FC电路的同步过程。
Applying phase picture of AFC system, this article analyses synchronization of balanced AFC system.
介绍了摄影—图象分析法的基本原理，VGB—1型图象分析仪的系统组成、功能及工作原理。
The basic principle of photo - image analysis method and the composition, specifications and performance of the VGB-1 image analyzer are introduced.
此系统主要解决了四个难点：浇注系统设计、冷却系统分析、型腔、型芯的曲面造型设计、装配图和零件工作图的设计绘制。
With this system, the runner gate system design, mold cooling analysis, surface modeling, and automatic drawing could all be well carried out on microcomputer.
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