The technology of managing the pollution of black-liquor of straw pulping in paper-making is a hot point in China's water pollution controlling research.
草浆造纸黑液的污染治理技术是国内水污染控制研究的热点，但由于草浆黑液的特点不同于木浆造纸废水，因而其治理成本较大。
Hot melt glues and stickies in wastepaper are the obstacles in pulping process of waste paper and the product quality. Slot screen has become main equipment to remove the troublesome materials.
废纸中的热熔物和胶粘物成为废纸制浆过程和提高产品质量的障碍，缝筛已成为去除这些杂质的主要设备。
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.
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。
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