There are three main problems in the traditional chemical pulping: high cost and energy consumption, low pulp yield and serious environmental pollution.
传统化学制浆工艺主要存在三个问题，即成本、能耗高，纸浆得率低，环境污染严重。
Mechanical pulp is relatively low in cost because of its high yield (almost 100%), and thus make its use advantageous.
机械浆由于近乎100%的高得率使其成本相对较低，因此使其在应用上具有优势。
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