乙烯

Methods Male SD rats were selected, 5 for each group. Trichloroethylene at the doses of 1500 and 3000 mg/kg were poured into rats stomach through mouth, then they were killed after 48 hours.

选用雄性SD大鼠，每组5只，用1500和3000mg/kg的三氯乙烯经口灌胃染毒，48h处死动物。

Trichloroethylene and noise ; Occupational contact crowd ; Hearing impairment ; Joint effects

三氯乙烯与噪声；职业接触人群；听力损害；联合作用

The decomposition of trichloroethylene in a wire-in-tube pulsed corona reactor was experimentally investigated.

采用线-筒式电晕反应器对三氯乙烯在氮气中和有氧气存在情况下的降解效果进行了实验研究。

Trichloroethylene at the doses of 1500 and 3000mg/kg induces obvious oxidative stress in rat liver tissue and causes DNA damage in rat hepatocytes.

三氯乙烯在1500和3000mg/kg剂量条件下染毒大鼠后，造成肝组织明显的氧化应激并引起肝细胞DNA损伤。

In order to elucidate the effect of minerals and humic matter on the sorption of hydrophobic organic chemicals, sorption of trichloroethylene on series humic acid modified and unmodified montmorillonite, kaolinite and silica gel was studied in this paper.

为了分别揭示矿物质、有机质在疏水性有机物吸附中的作用，文章研究了蒙脱石、高岭土、硅胶以及用腐殖酸修饰后的这3种模型吸附剂对三氯乙烯的吸附行为。

This paper deals with a cationic bisamide compound system deinking agent whose intermediate was prepared by using tristearin, isopropylidene glycerol, diethylenetriamine and catalyzed by p-Toluene sulfonic acid and reacted at 140℃ for 2 h.

摘 要：以三硬脂酸甘油酯、二乙烯三胺为原料合成了中间体，经硫酸二甲酯阳离子化制备出双酰胺季铵盐阳离子表面活性剂，再与AEO-9、TX-10复配制得复合脱墨剂。

Fiber cement siding on the front and sides, 6 1/2-inch beaded vinyl siding on the back, professional landscaping, a deck and a two-car garage.

纤维水泥墙板在车厢前部与两侧， 6 1/2-inch珠乙烯基侧板的背面，专业美化，甲板和两个车库。。。

The reparing high molecular material was divided into absorbable and unabsorbable material,the former included polyglycolic-acid and polyglaction,the later consists of polypropylene polyester and expanded polytetrafluoroethylene.

人工高分子修补材料主要有可吸收和不可吸收两大类，前者有聚羟基乙酸和聚乳酸羟基乙酸两种，后者有聚丙烯网、膨体聚四氟乙烯片及聚酯纤维网。

Moreover, evaluating the effects of different factors such as laying up unaffectedly, temperature.

此外，又评价了自然放置不同时间和不同温度对自来水中氯仿、三氯乙烯、二溴一氯甲烷等存在的影响。

Compared with formerly used crude mica and polyquadrifuorethene, Fluorocrytal Mica with its purity has high body resistivity (100 times than crude mica), low loss in high frequency medium ( 1 time smaller than crude mica), moderate dielectric constant, safe use temperature up to 1100℃, good intensity, elasticity, unaging, and consequently good electric stability.

与原来使用的天然云母和聚四氟乙烯比较，氟晶云母由于质地纯净，具有较高的体电阻率（比天然云母高约1000倍），高频介质损耗低（比天然云母小1倍），介电常数适中，且安全使用温度可达1100℃、强度好、富有弹性、不易老化，因而其电性能非常稳定。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。