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.
重硫酸盐浆：把木片在苛性钠和硫酸钠溶液内加压蒸煮而成的碱性浆。
Sulphate pulp: Alkaline pulp made from wood chips cooked under pressure in a solution of caustic soda and sodium sulphide.
利用水预水解法先提取桉木片中的半纤维素，然后对水解后的木片进行硫酸盐法蒸煮。
Pre-extracting hemicellulose sugars from eucalyptus chips by pre-hydrolysis with hot water was carried out, and then the kraft pulping was proceeded.
木片通过一个特殊的阀门随着大流量的液体从蒸煮塔的顶部喂入蒸煮塔内。
The chip are fed into the digester via a special valve by means of a large flow of liquor from the digester top.
合适时间的热水预处理可使木片具有更好的制浆性能，但预处理时间过长会导致蒸煮后成浆强度下降。
The pulping performance of wood chip was improved by hot-water pre-extraction in appropriate time. The pulp strength would degrade if pre-extraction time was too long.
当使用特定木片原料时，两种蒸煮器在浆的产量和强度上并没有显著差别。
There does not appear to be any significant difference between the two types in the yield or the strength of the pulps obtained from a particular chip supply.
当使用特定木片原料时，两种蒸煮器在浆的产量和强度上并没有显著差别。
There does not appear to be any significant difference between the two types in the yield or the strength of the pulps obtained from a particular chip supply.
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