We have two options.One is we keep the system of coordinates centers here.
有两种选择，一种是仍然让坐标轴的中心在这里。
The system will then repeat the coordinates and joint action commands during the process.
系统在处理过程中将重复坐标和连接活动指令。
The system will then repeat the coordinates and joint action commands during the process.
系统在处理过程中将重复坐标和连接活动指令。
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