番译以下内容：中译英,2；打底漆及封底处理 被涂物均须打底漆及封底处理以防止有渗色,透湿污染真石漆,底漆用量每遍需在0.

2,Play primer and bottom sealing processing
Been painted things are required to play primer and bottom sealing processing against has ooze is lubricious,permeability pollution really stone paint,primer dosage every times in 0.15 KG/to ㎡ side until completely without permeability color so far.
3:lofting reticule
The black line already exert good,first with straightedge or marking make linear markings.
4:stick adhesive tape line
Stick adhesive tape to stick straight and paste,and double-quick passage,can nail uplines nail.Lest spraying after could not find a tape source