以水作夹带剂可以提高除虫菊酯萃取效率.The water as cosolvent could enhance extraction efficiency.夹带剂强化技术可显著提高超临界CO_2萃取茄尼醇的萃取效率.Entrainer enhancing technology can significantly improve the solanesol separation efficiency of supercritical CO...
The effect of catalyst, epichlorohydrin and base on product yield was studied.研究了催化剂用量 、 反应原料配比及?A用量对产物收率的影响.The effect of catalyst, epichlorohydrin and base on product was studied.研究了催化剂用量 、 反应原料配比及碱用量对产物收率的影响.Grafting ...
The twister hit the roofs of homes and buildings.龙卷风把房屋以及农机建筑物连根拔起.Tongue Twister : Can you can a can as a cannery cans can?你能像罐头厂那样装罐头 吗 ?The person he had trusted turned out to be a twister.他起先信任的人结果却是个冤家....
Object : To observe the oxygen derived free radicals scavenging of diterpenoid tanshinones by pyrogallol autoxidation systems.目的: 探讨丹参二萜醌对邻苯三酚自氧化反应产生的氧自由基的作用.Reaction mechanism of liquid phase autoxidation of O - nitroto...