对甘油催化氢解制取1, 2- 丙二醇效果最好的是含铜的催化剂. Copper - containing catalysts are the most suitable catalysts for producing 1, 2 - propanediol through catalytic hydrogenolysis of glycerol.
She was seen in animated conversation with the singer Yuri Marusin...有人看见她与歌手尤里·马鲁辛交谈甚欢。She was seen in animated conversation with the singer Yuri Marusin.有人看见她与歌手尤里·马鲁辛交谈甚欢。The job went to Yuri Skokov, a capable adminis...
The fund was in danger of losing its tax-exempt status.该基金面临不再享受免税待遇的风险。Soldiers were exempt from paying rates.士兵免缴地方税。Children under two years are exempt.两岁以下儿童免票。...
Some old miners are still panning for gold in the streams.一些老矿工仍旧在这些河里淘金.Zooming and panning are navigational tools for exploring 2 D and 3 D information.缩放和平移是浏览二维和三维信息的导航工具.Panning and zooming, especially when paired t...
Mucosal immune response of the mice to formalin - treated Campylobacter jejuni, CJ - S 131 , was effectively induced by oral immunization.甲醛化空弯菌CJ -S131 菌苗经口免疫小鼠, 有效地诱导了肠道粘膜的特异性免疫应答.The effects of formalin added during m...