| 1. | In there compounds, the cyclopentadiene ring has only four hydrogens .
在这些化合物里，环戊二烯环只有4个氢。 |
| 2. | Iir . isobutene - isoprene rubber - evaluation procedures
异丁烯异戊二烯橡胶 |
| 3. | Progress in research on - alumina catalyst carrier
双环戊二烯催化开环移位聚合研究进展 |
| 4. | Rubber - determination of polyisoprene content
橡胶中聚异戊二烯含量的测定 |
| 5. | Study on vapor - phase depolymerization of dicyclopentadiene
双环戊二烯气相解聚工艺的研究 |
| 6. | Synthesis of epoxidized trans - 1 , 4 - polyisoprene
聚异戊二烯的合成 |
| 7. | Synthesis and curing of dicyclopentadiene - containing epoxy resin
苯酚双环戊二烯环氧树脂的合成与固化性能研究 |
| 8. | Biir ciir . halogenated isobutene - isoprene rubber biir and ciir - evaluation procedures
卤代异丁烯-异戊二烯橡胶 |
| 9. | Identification of nature rubber and poly isoprene rubber by ir spectrum
天然橡胶与合成聚异戊二烯橡胶的红外光谱鉴定 |
| 10. | Yuguanfengzhuseqiyong juyiwuerxixiangjiao zhengtouhumao polyisoprene rubber caps for needles for prefilled syringes
预灌封注射器用聚异戊二烯橡胶针头护帽 |
