行为图，比如用例和活动图，代表普通类型的行为。
Behavior diagrams, such as use case and activity diagrams, represent general types of behavior.
上面右边的那个显示了大多的普通类型的大脑信号传输器的外形。
The above one on the right shows the shape of the most usual type of brain transmitter.
普通类型的压力测量仪相对比较便宜些，但是缺少从一个到另一个的精确性和可重复性。
Ordinary dial-type pressure gauges are relatively inexpensive, but lack accuracy and repeatability of measurement from one to another.
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