求翻译：当液下泵在D=1200mm（即安装板以下1200mm）的时候，是可以正常工作的。1200mm并不代表可以浸入液面以下的深度，而是安装板至泵最下端的距离。浸入液面的深度要小于1200mm这个长度是什么意思？

When the fluid pump in the D = 1200mm (that is, the following mounting plate 1200mm) when it is working correctly. 1200mm can be immersed below the liquid level does not represent the depth, but the bottom of the pump mounting plate to the distance. Depth of immersion liquid is less than the length

When the submersible pump installed D=1200 mm (i.e. , the following 1200 mm) of GEM, can take the normal work. 1200 mm can be submerged and do not represent the depth below the liquid, but install GEM to pump the distance between the bottom. submerged in liquid surface to be less than 1200 mm depth

When under fluid pump (rests below panelling in D=1200mm 1200mm) time, is may the normal work.1200mm does not represent may plunge the liquid level following depth, but is the mounting panel to the pump most lower extremity distance.Plunges the liquid level the depth to have to be smaller than 1200m

When submerged pump in D=1200mm (that is, mounting plate a 1200mm), is to work properly. 1200mm depth does not mean that you can dip below the liquid surface, but the distance from the bottom of the mounting plate to pump. Immersion depth of the surface to be less than 1200mm length

Act as the lower pump of the liquid in D =In 1200mm (mounting plate following 1200mm), be can work normallied. 1200mm represent can be soaked in the depth of the level surface, but the mounting plate is to the distance bottom of the pump. The ones that soak in the level surface should be smaller tha