Synthetic resin is a high-molecular polymer produced artificially through the polymerization of low-molecular monomers such as ethylene, propylene and chloroethylene etc.
合成树脂为人工合成的高分子聚合物，是由低分子原料（如乙烯、丙烯、氯乙烯等）通过聚合反应生产的。
2
The bulk of homo-polypropylene and propylene-ethylene co-polymer were produced with different catalyst systems on a continuous polypropylene pilot plant.
利用连续聚合中试装置制备了批量的不同催化剂体系的丙烯均聚物和乙丙共聚物。
3
The gas flow path of SP - 3420 gas chromatograph was modified by adding a 10-way switch valve for analyzing micro-amount CO and CO2 in polymer grade propylene.