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READ: It is well known everywhere that complete solids control equipment is an important demonstration of scientific drilling. The continuous enhancement within almost a decade remarkably brings about better drilling techniques, less maintenance on circulating system, faster drilling velocity and lower costs. It is well known everywhere that complete solids control equipment is an important demonstration of scientific drilling. The continuous enhancement within almost a decade remarkably brings about better drilling techniques, less maintenance on circulating system, faster drilling velocity and lower costs. Prior to 1970s, extremely primitive shale shaker took most work in oil drilling industry, but its separation diameter merely reached 400 m in the best scenario and solid particles went