查询词典 acetone

The pathogenicity of pathogen was enhanced by washing leaf surface with acetone and 700% alcohol and by exposing the seedlings out of green-house.

在侵染试验中，用丙酮和70％酒精清洗的幼苗叶片发病加重；露天放置的烟苗较生长在温室内的烟苗发病重。

Use alcohol or acetone to remove oil stain on the steel plate.

用钢丝刷或铁砂纸打磨钢板的封边部位，同时清除封边部位混凝土基面的浮尘

Variety is the main business: toluene and xylene, Chunben, solvent oil, methanol, acetone, alcohol and alcohol iso.

主要经营品种有：甲苯、二甲苯、纯苯、溶剂油、甲醇、丙酮、异丁醇和正丁醇。

The liposolubility is the major component in the extractum,and therefore,dehydrated alcohol and acetone may be used as the dewaxing solvent for the extractum.

无水乙醇和丙酮是理想的浸膏后处理和脱蜡溶剂。结论：该浸膏含较多的脂溶性成分，采用无水乙醇和丙酮作为浸膏的脱蜡溶剂是可行的。

Starch can be decomposed into a mixture of acetone, n-butyl alcohol, carbon dioxide and hydrogen by a variety of different bacteria, e.g. clostridum acetobutylicum.

淀粉可能被分解入丙酮、n-butyl 酒精、二氧化碳和氢由各种各样不同的细菌，即clostridum acetobutylicum 混合物。

The dynamical processes of the nucleation and propagation of stress corrosion cracking of four low alloy steels with a wide range of tensile strengths in aqueous media with various polarization conditions, in a K_2Cr_2O_7 inhibitor solution and in some organic solvent such as acetone and alcohol were traced with an optical microscope.

用抛光的恒位移试样跟踪观察了具有广泛拉伸强度范围的四种低合金钢在各种水溶液中(高纯水、阳极极化和阴极极化下的水溶液，0.1NK_2Cr_2O_7水溶液)以及含痕量水的有机溶剂中应力腐蚀裂纹产生和扩展的动态过程。

In order to improve the content of phosphatidylcholine, a study has been carried out on the use of acetone and alcohol to extract PC from soybean lecithin .

研究了以浓缩大豆磷脂为原料，采用丙酮和乙醇作溶剂，经丙酮脱油、真空干燥、乙醇抽提、减压蒸馏浓缩制备高含量磷脂酰胆碱的提纯工艺。

Acetone and tert-butyl alcohol were two major organic products for the photocatalysis of MTBE.

MTBE之光催化含碳有机产物以丙酮和第三丁醇(tert-Butyl Alcohol， TBA)为主，水气的增加使反应路径由生成丙酮为主朝向生成TBA为主。

Capsanthin was extracted by composite solvent methods of using alcohol and acetone as solvents.

最佳工艺条件即：先进行丙酮处理(时间2h，提取比为1∶3，pH值为10.0，温度为40℃)，再用乙醇处理(时间1h，提取比1∶2，温度50℃，pH=9.0)，从而得到符合国家标准的辣椒红素。

At the same time, do not use alcohol or acetone containing cleaning fluid containing the chemical constituents of the cleaning agent, but also can not spray liquid directly to the screen in order to avoid liquid penetration into the protective film.

同时千万不要使用含有酒精或丙酮的清洁液或含有化学成分的清洁剂，更不能将液体直接喷射到屏面，以免液体渗透进保护膜。

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。