求翻译：在轴承安装时当轴承的内径大于 70mm，或是配合过盈较大的时候，一般要采用加热法，使轴承孔发生膨胀，这样安装的时候会省力省时，也避免了因施力过大而导致的轴承的损伤等。是什么意思？

When the bearings are installed when the bearing bore diameter greater than 70mm, or combined with an interference when larger, typically using heating method, bearing hole expansion occurs, such an installation when saving time, avoid excessive force caused damage of bearings.