When using a special tool, e.g. with a mechanical insertion template, or external interference, it may be necessary to change the setting of or readjust the stopping point.

• 当使用到某种特殊的器具时；例如用一个机械插入模板；或者外部的干扰物；就可能有必要改变停滞点的设定或重新调整其停止点.