咀字由“口”、“且”组成。“且”意为“加力”、“给力”。“口”与“且”联合起来表示“用牙齿使劲咬碎食物”。本义：咬碎食物。
喷墨印刷机的速度主要取决于喷咀的线性成像速度，而后者则与所采用的技术有关。
The speed of inkjet printers is therefore based upon the linear imaging speed of the printhead. The speed of the head is based upon the technology used.
目前最快的喷咀当数柯达万印(Versamark)的V系列产品所采用的连续喷墨喷咀。
Currently the fastest printheads are the continuous inkjet technology heads used in the Kodak Versamark V-Series product range (pictured on the right).
目前最快的压电按需喷咀是精工爱普生和松下公司的产品，但它们只能提供1级灰度、600dpi解像度的墨滴。
The fastest DOD heads are the Seiko Epson and Panasonic heads but these only produce a binary (1 grey level) 600dpi ink dot.
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