| 1. | Olefin gas closely approximates air .
烯空气跟空气十分近似。 |
| 2. | Ozone is formed in the reaction, and a nitro derivative of the olefin .
在反应中形成臭氧及烯烃的硝基衍生物。 |
| 3. | Toward this end, the olefin 51 was treated with cyanogen azide and, indeed, produced the ring expanded ketone 52 .
为了证明这一看法，他用氰化迭氮处理烯烃（51）就得到扩大的环酮。 |
| 4. | The compounds are prepared by the epoxidization of dinitrofluoromethyl olefins with peroxytrifluoroacetic acid .
这种化合物，由二硝基氟甲基烯烃与过氧化三氟醋酸进行环氧化反应而得到。 |
| 5. | The hydrogenation of olefins affords an example where both heterogeneous and homogeneous catalyses are effective .
烯烃的加氢反应就是这样的一个例子，对它说来均相催化和多相催化都是有效的。 |
| 6. | Non - hydrogenation reducing - olefins technology for fcc gasoline
汽油降烯烃非加氢工艺 |
| 7. | Test method for carbon black in olefin plastics
石蜡塑料中炭黑的测试方法 |
| 8. | Test methods for chemical analysis of alpha olefin sulfonates
烯磺酸盐化学分析的试验方法 |
| 9. | Progress in alpha olefin synthesis processes
烯烃合成工艺技术进展 |
| 10. | Test methods for flexible cellular materials made from olefin polymers
烯烃聚合物柔性多孔材料试验方法 |
