Check the Distance.

检查距离。

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Check the instrument maufacture's manual for the proper insertion distance.

查阅仪器生产商的说明书，以便获取合适的安装距离。

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If the Dial as long distance check box is available, make sure it is selected.

如果“按长途拨号”复选框可用，请确认已选中此复选框。

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If the Dial as long distance check box is available, make sure it is selected.

如果“按长途拨号”复选框可用，请确认已选中此复选框。

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