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Contents of colloidal trace metals(1kD~1μm) in Meiliang Bay, an algal-bloom bay of Taihu Lake, and Gonghu Bay, a macrophytes dominanted bay of Taihu Lake, were investigated in April by using cross-flow ultrafiltration (CFF) technique. In each sampling site, 20 L surface water was pumped and filtrated by 63 μm nylon sieve. The filtered water was carried to laboratory in 2 hours, prefiltrated by 1μm...
Developed by the PMAC motion control card and PC, consisting of an open-architecture CNC machining systems. The system is Windows operating system platform; describes the composition of the system hardware and software, PMAC controller of the PID algorithm and parameter adjustment aspects. The practical application proves that the system, high reliability, ease of maintenance to meet market demand.
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