Grainer

(n.) An infusion of pigeon's dung used by tanners to neutralize the effects of lime and give flexibility to skins; -- called also grains and bate.

(n.) A knife for taking the hair off skins.

(n.) One who paints in imitation of the grain of wood, marble, etc.; also, the brush or tool used in graining.

录入:莉娜

• The most practical methods of refining salt today are known as the Grainer, Vacuum Pan and Alberger systems. 佚名. 神奇的知识之书.
• The Grainer system is similar in its operation to the old open-pan system. 佚名. 神奇的知识之书.

录入:莉娜