半岛bd体育手机客户端 性质
Sigma-Aldrich
Scienceware?POXYGRID?test-tube rack
Serrated natural rubber septa
Sigma-Aldrich?micro pH combination electrode, glass body
Spinbar?magnetic stir bar
Spinbar?磁力搅拌棒
VerSA-FlowTMcan and drum dispenser
Wilmad?NMR tubes 5 mm diam., precision
Wilmad?NMR 管，直径 5 mm，精度型
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