The new urea formaldehyde resin for plywood was developed, by using a specifically designed, advanced synthesis process with two modifiers added in its final stage.
此种新开发的脲醛树脂，采用特定的先进合成工艺和加入两种改性剂研制而成。
Existing problems in new erected urea plant are briefly discussed in the aspects of process, equipment, meters, environment protection and operation etc. Some modification idea is put forward.
从新建尿素装置的工艺、设备、仪表、环保及操作等问题入手，粗浅地讨论了出现的相关问题，并提出了探讨性的观点和措施。
The experimental results show that the new classifier combined with the new process can reach a satisfactory efficiency in the classification of urea product in a large scale of capacity.
实验结果表明，该技术用于尿素脱除细粒粉料，可以达到良好的分级效果。
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