While, birch has much faster drainage rate and highest solids content of the wet web, though its low retention properties need to be further improved.
相比之下，桦木浆具有较快的滤水速率和较高的湿部固含量，但其留着性能还有待改进。
The drawbacks are acacia's low drainage rate and low initial wet web strength, which are bottlenecks to the high paper machine speed especially at the web forming.
需要改进的地方是：它的滤水速率和湿纸幅强度较低，这些将是现代高速纸机湿部的瓶颈所在。
In the wet process the web of fibers may be formed from a suspension of the fibers in water.
在湿法成网过程中，可以利用悬浮在水中的纤维形成纤维网。
In the wet process the web of fibers may be formed from a suspension of the fibers in water.
在湿法成网过程中，可以利用悬浮在水中的纤维形成纤维网。
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