It emerges from a nozzle that's rarely wider than 400 microns in diameter, and can produce a continuous filament roughly the thickness of a human fingernail.

墨水会从喷嘴挤出，喷嘴的直径一般不会超过 400 微米，可以挤出连续不断的线丝，厚度和人的指甲差不多。