Elements should not be placed closer than two element diameters to each other or one and one half element diameter to a wall or other reflecting body 孔与孔之间的距离不小于元件直径的两倍，元件与炉壁、反应物件的距离不小于直径的1 . 5倍。
2.
Elements should not be placed closer than two element diameters to each other or one and one half element diameters to a wall or other reflecting body 孔与孔之间的距离不小于元件直径的两倍，元件与炉壁、反应物件的距离不小于直径的1 . 5倍。
3.
Elements should not be placed closer than two element diameters to each other or one and one half element diameters to a wall or other reflecting body 安装时棒与棒的间距不能少于两个直径长，和炉壁或其它反应物的距离不能少于一个半直径长。
