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ultra-low density
 ultra low density
el. 超低密度
| polyethylene
 polyethylene
agric. 聚乙烯
chem. 聚亚甲基
earth.sc. 聚乙烯
tech. 聚乙烯

to phrases
ultra-low density
chem. 超低密度
ultra low density
el. 超低密度
ultra-low density polyethylene
: 3 phrases in 3 subjects
Chemistry1
Drilling1
Oil / petroleum1