Pitch: The horizontal spacing of typewriter or impact printer characters. Common pitches are 10, 12, and 15(10, 12, 15 characters to the linear inch).

• 字阔度:打字机或撞压式印字机的字符阔度。常见的字阔度是10、12和15(即是每寸长度内分别有10、12或15个字符)。