1·The phenol resins and plastics were the original synthetic thermosetting materials.
酚树脂和塑料是原始的热硬化性合成材料。
2·The chemical change of four resole type phenol-formaldehyde resins in curing process was studied by infra-red spectroscopy.
用红外光谱法研究了四种热固性酚醛树脂在固化过程中的化学变化。
3·It is used in the manufacture of pesticides, phenol furfural resins, and tetrahydrofuran.
以它为原料可再加工成树脂，合成纤维，合成橡胶，合成香料，西药，农药等。
4·The high specific surface area activated carbon (HSSAAC) is prepared with phenol-formaldehyde resins as raw material and NaOH as activators.
以农林废弃物——烟杆的炭化料为原料，采用微波加热氢氧化钾活化法制备了高比表面积活性炭。