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Crucigrama Sopa de Letras Hoja de Trabajo
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Pre Treatment - Afternoon

Horizontales
Sand and grit removal device
A term used for the distance between a bar screen
Pretreatment method
The addition of a hypochlorite
Fine screen used to remove algae
Verticales
Pretreatment process to remove sand and silt
What type of bar screens should not be neglected?
Measurement of an angle of a bar screen
Principal problem with screening
Series of straight steel bars