在过程中需加入某些物质，或对变定具有催化作用或本身参加变定瓜在。如热塑性酚醛压缩粉中需加入六亚甲基四胺作变定剂。
... 热固性塑料;thermoset(ting) plastic(s);thermoset 定型;热定型;heat setting;setting 变定;晾干(flash off);setting ...
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结果表明：处理材的厚度吸湿回复率为2.68%，具有良好的尺寸稳定性，说明压缩变定效果好。
The result showed that the treated wood had good dimension stability, and the moisture Absorption recovery ratio of thickness was 2.68%, which indicated that the set of compression was almost fixed.
把变参数模型和定参数模型的计算结果与现场实测数据进行了比较。
Both calculations with variable parameter model and invariable parameter model are made and compared to field test data.
该系统采用了大温差变流量冷水机组、大温差定流量带部分热回收土壤源热泵机组与锅炉的组合；
The chillers adopt large temperature difference and variable flow, the heat pumps adopt large temperature difference and fixed flow and part heat recovery.
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