1、加热棒尽量保持倾斜或平躺状态;
1, the heating rod keeps the tilted or lying state as much as possible;
2、尽可能让水流匀速大量地流过加热棒;
2. As far as possible, the flow of water flows through the heating rod at a constant speed.
3、加热棒要全部潜到水位线以下的位置;
3, the heating rod should all dive to the position below the water level line.