The pulp has a comparatively high resin content, since the acid cooking liquor dose not remove the resinous matter found in the wood.

由于这种酸性蒸煮液不能去除木材中的树脂类物质，所以浆料中树脂含量相对较高。

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The wood used to generate the smoke should be non-resinous, such AS hickory, apple, plum, oak, beech, or ASh.

烟熏所用的木头不应含树脂，如山胡桃，苹果树，李树，橡树，榉树或秦皮。

youdao

Rough hulls of young wood suffuse the workshop with a rich and resinous fragrance.

BBC: The spirit of the Italian Lakes