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copolyester
共聚酯
主链由两种或两种以上的结构单元构成的聚酯。是一种全新的透明工程塑料。
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copolyester
共聚酯
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oil-saving lamp
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oil seal ring
oilseed rape
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oilseed rape white rust
oil separator
oil service test
oils for injection
oil shale
oil shale evaluation
oil shale reserves distribution
oil simulation evaluation
oil spill
oil spill accident in offshore oil exploitation
Oil Spill Contingency Plan for Marine Ships in China
oil spill of submarine pipeline
oil spill recovery technology
oil spill treatment technology
oil stability index
oil stand evaluation
oil station
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