名词
中文翻译：第二选择器
同义词：
['secondary selector', 'secondary preselector']
例句：
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1. The second preselector on the keyboard allows you to quickly access frequently used functions.
键盘上的第二个选择器允许您快速访问常用功能。
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2. During the selection process, the user can choose between different preselected options.
在选定过程中，用户可以在预选选项之间进行选择。
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3. The software uses a second preselector to filter out irrelevant data before processing it.
该软件使用第二选择器来过滤掉无关数据，以便处理。