第一个是 -a，它表示当所有的参数都为真时，才显示这个文件。
The first is -a, which means that all parameters must hold true for a file to be displayed.
整条生产线采用一个电器柜集中控制，大屏幕显示，所有的工艺参数均可通过屏幕调整，简单快捷。
The whole production line is controlled by one electrical cabinet, and displayed on big screen, on which all the technical parameter can be adjusted easily and quickly.
P - EASY数据广播的运行条件和它的天线系统是透明的，一目了然，因为所有的状态参数都以绿色栏显示。
The operating condition of P-EASY data radio and it's aerial system are transparent at a glance, as all status parameters are indicated with green bars.
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