| 1. | We examine the study of hexamethylenetetramine .
我们来讨论六亚甲基四胺。 |
| 2. | 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。 |
| 3. | 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。 |
| 4. | 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。 |
| 5. | Hexamethylene diisocyanate (hmdi) may be used in prepolymer, in place of tdi .
六亚甲基二异氰酸酯（HMDI）可用在预聚物中代替甲苯二异氰酸酯TDI。 |
| 6. | " for his work on polymethylenes and higher terpenes
对聚亚甲基和高萜烯的研究 |
| 7. | The rods are seen here with a methylene blue stain
图为亚甲基兰染色见杆状菌。 |
| 8. | Use : methylene blue at 5 drops per gallon for 5 days
使用亚甲基蓝每加仑水5滴用量，连续5天。 |
| 9. | Standard specification for vapor - degreasing grade methylene chloride
蒸汽脱脂级亚甲基氯的标准规范 |
| 10. | Methylene blue spectrophotometric method
亚甲基蓝分光光度法 |
