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- The juice is concentrated by evaporation under reduced pressure. 果汁是低压蒸发浓缩而成的。
- The solvent was evaporated under reduced pressure and water (100 ml) and acetic acid (12 ml) were added to the residue. 溶液减压蒸馏,在残留物中加入100毫升水和12毫升醋酸。
- The solvent was evaporated under reduced pressure and water (100 ml. and acetic acid (12 ml. were added to the residue. 溶液减压蒸馏,在残留物中加入100毫升水和12毫升醋酸。
- Methods After raw material being extracted with 95% ethanol,the ethanol extracts were evaporated to dryness under reduced pressure. 方法原料用95%25乙醇提取,浓缩成浸膏后用醋酸乙酯萃取。
- After several washings, a part of the solvent is evaporated under reduced pressure, heptane is added and the mixture is cooled to room temperature. 几经衣服之外;一部分溶剂蒸发减少压力下;加庚、混和冷却到室温.
- Under reduced pressure,Poly(L-lactic acid)(PLLA) has been synthesized by ring-opening polymerization of L-lactide(LLA) catalyzed by Sn(Oct)2. 采用自制、提纯的L-丙交酯(LLA),用辛酸亚锡作催化剂,在减压下进行聚L-乳酸(PLLA)的开环聚合研究。
- The organic layer was dried over anhydrous MgSO4 and the solvent removed under reduced pressure to afford a residue that upon trituration with hexane gave the product. 有机层在无水硫酸镁的作用下被干燥了。在压力减少的情况下,溶剂被去除了,残渣和己烷一起研磨后得到了这种产品。
- Content of citral isolated by intermittent rectifying under reduced pressure was reach 97%,and high content of myrcene was also obtained from lemen oil. 获得适宜的工艺条件,分离得的单离柠檬醛含量最高达97%25。另外从柠檬草油的轻度馏份中,分离得到高质量的月桂烯。
- The surface acidic functional groups of chars by pyrolysis of used tires, at atmospheric and under reduced pressure, and of commercial blacks were investigated. 纯沥青材料的性质如:黏度、延性与黏结力易受环境温度影响。
- decomposition process under reduced pressure 减压分解工艺
- filtration under reduced pressure 减压过滤
- distillation under reduced pressure 减压蒸馏
- Containing air or other gas at a reduced pressure. 低压气体的在减弱的压强之下含有空气和其他气体的
- Adiabatic Multistage Process for Ethyl-benzene Dehydrogenation to Styrene under Reduced Pressure 多段负压绝热乙苯脱氢反应工艺
- Solid fertilizers and liming materials - Determination of moisture content - Gravimetric method by drying under reduced pressure 固体肥料及石灰材料。水分含量测定。减压干燥下的重量测定法
- A small valve or faucet used to drain or reduce pressure, as from a boiler. 泄气阀,小龙头用来排空或降低压力的一种小阀门或小龙头,如锅炉上的
- To reduce pressure steadily and noise-free. 工作平稳,无噪声及冲击。
- heating under reduced pressure 减压加热法
- under reduced pressure 在减压(情况)下
- drying under reduced pressure 减压干燥