The dual-group hydrocarbon type rubber plasticizer was prepared using the heavy components in the production of heavy oil catalytic cracking by secondary deasphalting process.
以重油催化裂化装置生产的重组分油为原料，采用二次脱沥青精制工艺，可制备二元族烃型橡胶增塑剂。
With box beams and diagonal-tensile suspended structure, the steel structure of the main building of the center is a new and unique design that has thick structural plates and heavy components.
上海浦东文献中心主楼钢结构工程为箱形梁斜拉悬挑结构，设计新颖独特。
Infrared spectrum tested asphaltine structure before and after reaction. Heavy components structure has changed after reaction, heavy components reduced and light components increased.
采用红外光谱对反应前后沥青质的结构进行了测定，反应后沥青质中重质组分的结构发生了变化，重质组分的减少，轻质组分的增多。
Infrared spectrum tested asphaltine structure before and after reaction. Heavy components structure has changed after reaction, heavy components reduced and light components increased.
采用红外光谱对反应前后沥青质的结构进行了测定，反应后沥青质中重质组分的结构发生了变化，重质组分的减少，轻质组分的增多。
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