So in reality, you must call the invoke method on a child of a child of the Action Bar applet, rather than the Action Bar applet itself, to calculate the width of the buttons.
因此，实际上您必须调用 Action Bar applet 的子类的子类的 invoke 方法（而不是 Action Bar applet 本身）计算按钮的宽度。
The graphic portion shows the number of targets in each state and the width of the bar for each state is proportional to the number of targets in that state.
图形部分显示每个状态下的目标数目，而每个状态条形图的宽度与处于该状态的目标数目成正比。
The Sensor Bar contains an array of sensors across the full width of the scanning head.
传感条包含了一组传感器阵列，跨越扫描头的整个宽度。
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