As shown in Figure 1-2, it can be thought of as a multiple position selector switch.
如图1 - 2所示，可认为它是一个多位置的选择开关。
Positive crimp depth is controlled by an 8 position selector knob conveniently located on the tool frame.
卷曲深度由8个可供选择的按钮(放在工具框)控制。
Each position of the selector must be clearly identifiable and must correspond to a single operating or control mode.
该选择器的每一位置必须能清晰识别，并且对应于单一操作或控制模式。
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