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Images of (a) 45° chips and (b) 90° chips with zoomed images in the focusing regions shown in the insets. The ethanol laminas formed at Flow-Rate-Ratios FRR = 10 and total volumetric flow rate Qt = 105 μL/min in the 45° chip, and FRR = 2, and Qt = 90 μL/min in the 90° chip.
