1·Thixotropy: The property of letterpress and offset inks of becoming fluid when stirred and setting to a semi solid state when left at rest for some times.
触变性：活版及柯式油墨的一种特性。当搅拌后，油墨变得稀，但让它静止一段时间，它又变回半固体状态的情况。
2·Platen: Small letterpress printing machine on which the paper is held in the platen and pressed up against the vertically-held type-bed.
平压机：小型活版印刷机。纸张摆稳于压板上，然后压向垂直的装版台的机器。 收藏。
3·Heat set ink: Letterpress and offset inks which dry under the action of heat by evaporation of their high boiling solvent.
热固油墨：活版及柯式用油墨。热力使它的高温沸腾溶剂蒸发而干燥。
4·Work-and-twist: A scheme of imposition which is largely used in letterpress to print complicate ruled FORms FOR ease of setting.
扭转式：活版用的装版方式。它方便排版，多数用于印制复杂有线表格。