| 1. | Allene is an isomer of methyl acetylene .
丙二烯是甲基乙炔的一种异构体。 |
| 2. | We examine the study of hexamethylenetetramine .
我们来讨论六亚甲基四胺。 |
| 3. | Trimethylphosphine forms the more stable complexes .
三甲基膦形成更稳定的化合物。 |
| 4. | This phenomenon does not occur with 1-2-dimethylenecyclobutane .
在1，2--二亚甲基环丁烷中并不发生这种现象。 |
| 5. | The recovery of added methylmercury was reported to be approximately 90% .
添加的甲基汞的回收率据报到达90左右。 |
| 6. | Ketenes, notably dimethyl ketene, readily undergo oligomerization and polymerization .
烯酮，特别是二甲基烯酮，很容易齐聚和聚合。 |
| 7. | One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group .
活性亚甲基上的一个氢原子是被环氧基所取代的。 |
| 8. | methoxy 1 groups are split off with boiling hi and converted to .
甲氧基用沸腾的碘氢酸分解，使甲氧基脱落并转为甲基碘。 |
| 9. | Kodak company describes open chain reactive methylene two-equivalent yellow-forming conplers .
柯达叙述了一种直链的活性亚甲基两当量的黄成色剂。 |
| 10. | The metals which are of particular concern are those which have been shown to be methylated in nature .
人们特别关心那些在自然界能被甲基化的金属。 |
