在化学制浆中，木片在较高的温度和压力下加入适当的蒸煮用化学品进行蒸煮。
The chemical pulping, the wood chips are cooked with the appropriate cooking chemical at elevated temperature and pressure.
良好蒸煮效果需要木片的尺寸均匀，因此，在进入蒸煮锅前，全部木片都要经过筛选。
As proper cooking requires chips of reasonably uniform sizes, all chips must be screened before entering the digesters.
亚硫酸盐浆：把木片在亚硫酸钙溶液内加压蒸煮而成的酸性浆。
Sulphite pulp: Acid pulp made from wood chips cooked under pressure in a solution of bisulphite of lime.
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