These models provide a way to reason about important system concerns before the system is designed and built, and thus offer powerful tools for the systems engineer.
这些模型在系统被设计和构建之前，提供了一种检查重要系统内容的方法，并因此为系统工程师提供了一种强有力的工具。
Available in either thru-shaft or end-of shaft models, it is specifically designed to provide feedback for ac and DC drive control systems.
可在任何直连轴或最终的轴模型，它是专为交流和直流传动控制系统的反馈。
Available in either thru-shaft or end-of shaft models, it is specifically designed to provide feedback for ac and DC drive control systems.
可在任何直连轴或最终的轴模型，它是专为交流和直流传动控制系统的反馈。
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