In my example, the first half of the program is simply a switch to allow manualselection of the backend to use from the command-line.
在我的示例中，该程序的上半部分完全是实现一个switch，允许从命令行手工选择要使用的后端。
2
Traditional stabilization precision measuring method is of great randomness because of the manualselection of Angle error signal, which effects the measuring precision.
传统稳定精度的测量采用人工方法对误差角信号进行处理，具有很大的随意性，使测量精度受到影响。
3
The extraction of keywords would have been a manual process, their selection entirely at the mercy of the person performing it.