查询词典 ethyl acetate

Among 3 cultivars, B17 occupied the least green odor contents of aromatic constituents, such as 2-hexen-1-ol acetate, butanoic acid 3-hexenyl ester and butanoic acid 3-hexenyl ester, hut had the most fruity, flowery and woody odors such as β-Ionone, 1-nonanol, Acetic acid octyl ester, Methyl benzoate, Ethyl benzoate and theaspirane, which showed that B 17 was superior to the 2 other cultivars in aroma quality.

不同品种的杨桃果实中的所含的香气成分及含量不同，B17杨桃含乙酸－反－2-己烯酯、丁酸－反－2-己烯酯、丁酸－反－3-己烯酯等青香型酯类最低而含β-紫罗兰酮、1-壬醇、乙酸辛酯苯甲酸甲酯、苯甲酸乙酯、茶螺烷等花香型、果香型及木香型成分最高，因而其香气品质要优于B10和新加坡红肉种。

Cis-3-hexen-1-ol, butyl acetate, ethyl butyrate, hexanal, trans-2-Hexen-1-al, propyl propionate that consists of green leaf volatiles and cymene were the most attractive compounds.

顺-3-己烯醇、乙酸丁酯、丁酸乙酯、丙酸丙酯及伞花烃等对光肩星天牛具有较强的正趋性反应。

Polyvinyl chloride ; Ethyl vinyl acetate ; Insulin ; Absorption

醋酸乙烯；聚氯乙烯；胰岛素；吸附

38Compounds were identified in Brookes, representing 59.66% of the total peak area; The main contents were Alcohol , Hexyl acetate , Styrene , 1-ethyl -3- methyl –Benzene , 1,2,3-Trimethyl benzene.

从布鲁克斯中检测出38种香气成分占总峰面积的59.66 %，相对百分含量较高的是乙醇、乙酸己酯、1-乙基－3－甲基苯、苯乙烯、1，2，3－三甲基苯。

In order to test the validity of this method, the saponification of methyl acetate, ethyl formate and methyl formate in aqueous solution at 25℃ has been studied.

研究了25℃下乙酸甲酯、甲酸乙酯和甲酸甲酯在水溶液中的皂化反应，其计算结果与文献值相吻合，从而验证了热弛豫法的正确性。

The paint includes liquid A, which consists of acrylic resin, mixed solvent of xylene, acetone and isophorone, organic silicone solution, superfine silica powder, titanium dioxide powder, methyl-(N-beta-amino ethyl gamma-amino propyl)-dimethoxy siloxane solution, gamma-methyl acrylyloxy propyl tromethoxy siloxane solution and fluorocarbon modified siloxane; and liquid B, which consists of hexamethylene diisocyanate, polydiisocyanate, xylene, and methoxy propyl acetate. When the paint is used, two components are mixed together.

由丙烯酸树脂、二甲苯和丙酮及异佛尔酮混合溶剂、有机硅酮溶液、超细二氧化硅粉、钛白粉、甲基(N-β-氨乙基γ-氨丙基)二甲氧基硅烷溶液、γ-甲基丙烯酰氧基丙基三甲氧基硅烷溶液、氟碳改性硅氧烷溶液组成A液，由六亚甲基二异氰酸酯聚异氰酸酯、二甲苯和甲氧基乙酸丙酯混合溶液组成B液，使用时将两组分混合。

Pharmaceutical characteristics of dimethylamino ethyl(4-chlorophenylmethfoxy )acetate hydrochloridein rabbit was studied and several parameters at different timeand way of medicine administration were determined.

研究了4－氯代苯甲氧基乙酸二甲氨基乙酯盐酸盐在家兔体内的药代动力学，测定了不同时间不同给药方式家兔体内的血药浓度及动力学参数。

Radiation-induced grafting of binary vinyl monomers of styrene/ maleic anhydride, St/ dimethylamino ethyl methacrylate and St/ vinyl acetate onto cotton cellulose was carried out byγ- radiation from a60 Co source at room temperature under nitrogen.

在氮气气氛下用γ线辐照的方法在棉纤维上接枝苯乙烯／来酸酐、乙烯／基丙烯酸二甲胺乙酯、乙烯／酸乙烯酯二元单体。

Using silicotungstic acid as catalyst with the catalyst supported on active carbon,2-methyl-2-ethyl-acetic-1,3-oxathiolane(targeted compound I,an aroma compound with apple flavor )was synthesized by the reaction of ethyl aceto-acetate and 2-mercapto-ethanol.

以活性炭固载硅钨酸作为催化剂，用乙酰乙酸乙酯与巯基乙醇缩和合成了具有浓郁苹果香气的香料化合物2-甲基-2-乙酸乙酯基-1，3-氧硫杂环戊烷。

Methyl-l, 3-oxazine-2,4-dione are prepared from ethyl acetoacetate and ethyl carbamate at 140 for 6h, catalysted by zinc acetate, giving to 48.8% yields which is 33% more than the literature value.

选用醋酸锌作催化剂，使乙酰乙酸乙酯与氨基甲酸酯在140℃反应6h，合成6-甲基-1，3-噁嗪-2，4-二酮，产率达48.8％，较文献报道值高出了33％。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。