丙酮的

In comparison with acetyl acetate method we found that in the reaction process the concentration of enol-like compound had some effect on the reaction rate.

通过与乙酰丙酮法的比较，认为在反应过程中，成环物质的烯醇型的化合物含量对反应速度有影响，烯醇型的化合物含量越高，反应温度越低。

The onset of the absorption spectrum is located in a longer wavelength region than that of the acetone (～390 nm) and is well overlapped with that of the action spectrum whose onset was about 390 nm.

发病的吸收光谱是设在一个较长的波长区域比的丙酮（ 390 nm ）和是重叠以及与该行动的频谱，其发病约390纳米。

The sulphur-containing vegetables were treated with a phosphoric acid-assisted to inactivate enzymes, and were cut into pieces and homogenized. Samples were extracted with acetone-hexane (1:1) and partitioned with hexane. The extract was cleaned up with florisil column and detected using gas chromatography with electron capture detection.

采用10%磷酸处理含硫蔬菜，去除含硫化合物的干扰，再用1：1的丙酮－正已烷提取，加入2%的硫酸钠溶液用正已烷进行液液分配，提取液用硅镁吸附剂层析柱净化，用气相色谱－电子俘获检测器检测。

With increase of concentrations of sodium propionate or sodium pyruvate, the abundance of PEPCK-C mRNA in the hepatocytes increased significantly first, whereafter decreased.

在原代单层培养的新生犊牛肝细胞培养液中分别加入不同浓度丙酸钠、丙酮酸钠、胰岛素、胰高血糖素和瘦蛋白，培养12h后，应用半定量RT-PCR方法检测体外培养的肝细胞PEPCK-C mRNA的丰度。

When the heterogeneous catalyst is used in the asymmetric catalytic hydrogenation reaction of ethyl pyruvate under the room temperature and the medium hydrogen pressure, high activity and optical selectivity more than 70 percent are obtained in acetic acid solution, and the heterogeneous catalyst can be repeatedly used for more than 15 times.

本发明提供的催化剂在室温、中等氢压力下用于丙酮酸乙酯的不对称催化氢化反应时在乙酸溶剂中可得到高活性和超过70％的光学选择性，且可以重复使用15次以上。

We sold 2-butanone 8000T, acetone 6000T and methyl isobutyl ketone 5000T in last year. The well-known domestic enterprises and joint ventures are both our main partners. So we have a good market credit, we will not only meet client's demand for the product, but also formed a stable base for logistics and distribution.

本公司年销售丁酮8000T，丙酮6000T，甲基异丁基甲酮5000T，我们主要合作伙伴有合资企业及国内知名企业，具有良好的市场信誉，我们不仅满足客户的生产需求，而且逐渐形成一个稳定的物流配送基地。

Acetone is also an important basic organic material, being used in the manufacture of methyl methacrylate, bisphenol A, methyl isobutyl ketone, and also in the production of cellulose acetate tablets, solvents for pla,stics and paints, and the solvent dewaxing for petroleum refining. In 2006, the production ability for phenol was 610,000 tons per year in China, the output was 520,000 tons, and the appearance consumption was 752,000 tons.

丙酮也是重要的基本有机原料，它用于制造甲基丙烯酸甲酯、双酚A、甲基异丁基酮等，用于生产醋酸纤维素片、塑料和涂料的溶剂以及石油炼制的脱蜡溶剂。2006年，我国苯酚生产能力61万吨/年，产量52万吨，表观消费量75.2万吨。

This also shows that not the kind of solvent on the solubility of all the ink is very good cordial when, of course, also include acetone and methyl ethyl ketone.

这也表明不是哪种溶剂对所有墨水的溶解能力都是很好的和洽当的，当然也包括丙酮和丁酮。

to establish a method of the gas chromatography for determination of residue solvent of acetone and isopropanol in cefotaxime sodium.

摘 要 目的：建立了用气相色谱法测定头孢噻肟钠样品中的残留溶媒丙酮、异丙醇的含量的方法。

The experiment takes carbolic acid as raw material , adopt acetophenetidin-rization, Fries weight row , the oxime have molten , Beckmann weight row combining method has got target outcome to acetophenetidin aminophenol, total recovery is under using acetone as catalysator in the best reaction temperature and the best reaction time: 40.5%.

在线等翻译~请哪位好心人帮我翻译一下我的毕业论文摘要~谢谢了。不要网站或者软件直译的！摘要本实验以苯酚为原料，采用乙酰化、Fries重排、肟化、Beckmann重排的合成方法得到了目标产物对乙酰氨基酚，用丙酮作催化剂在最佳反应温度和最佳反应时间下总收率为：40.5%。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。