用PLC模块构成多路模拟量巡检，用动态I/O模块实现LED显示及扫描键盘按钮，使系统具有较高的经济性。
This system has high economy because of using itinerant monitor to analogy signals that made by PLC modules, using LED display and scan keyboard as press buttons that made by PLC dynamic I/O modules.
动态和力度曲线（5） 可能需要针对演奏使用的MIDI键盘进行调整（译者：貌似是每个型号的MIDI键盘有特殊的手感及力度响应曲线）。
The dynamics and velocity curve (5) will most likely need to be adjusted to the keyboard used in a MIDI file performance.
动态和力度曲线（5） 可能需要针对演奏使用的MIDI键盘进行调整（译者：貌似是每个型号的MIDI键盘有特殊的手感及力度响应曲线）。
The dynamics and velocity curve (5) will most likely need to be adjusted to the keyboard used in a MIDI file performance.
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