查询词典 acetic aldehyde

But SPME was suitable to extract the substances such as terpenes,aldehyde ketones and small polar hydrocarbon compound with the low boiling point.

而SPME萃取的物质主要是低沸点的萜类、醛酮类和小极性的烃类。

Oil-containing poly microcapsules were prepared by simple coacervation followed by the chemical cross-linking of coacervated PVA membrane with glutaric aldehyde through phase separation method.

本实验使用聚乙烯醇Poly为壳材，以香精油为核材，利用相分离原理，以简单凝胶法，以戊二醛为交联剂进行微胶囊包覆。

In the sidestream smoke of cigarette, there are many substances which are harmful to people's health, such as nicotine, aldehyde.

卷烟燃烧时释放出大量侧流烟气，其中有很多危害人们身体健康的物质，如烟碱、醛类物质等。

This paper presents its preparation process and property, discusses the influence of aldehyde/phenol ratio, catalyst and reaction time on resin property, and the influence of resin solid content, modifier and density on foam property.

介绍了其制备工艺和性能，讨论了醛/酚比、催化剂和反应时间对树脂性能的影响，以及树脂固含量、改性剂、密度对泡沫性能的影响。

PS alkali lignin sulfonate is a new type of surfactant, which is extracted and purified from waste liquid of paper-making by adding phenol and aldehyde and sulphuric acid at high temperature.

PS碱木素磺酸盐是由造纸废液经浓缩加入酚、醛和硫酸等在高温下复配或反应后提炼出的 1种新型表面活性剂。

When added into phenol aldehyde in the production of glass fibre cotton and mineral cotton, it can improve moisture proof property and strengthen compression elastic resilience.

玻纤棉和矿物棉生产中，将其加入到酚醛粘结剂中，可提高防潮性及增加压缩回弹性。

The impregnation properties of distilled water, phenol aldehyde solution, and glycerol in carbon fiber weave stacks were studied by changing the vacuum pressures.

通过改变所加真空压力的大小，研究了蒸馏水、酚醛溶液、丙三醇三种流体对炭纤维织物铺层的渗透规律。

It is an excellent adhesion improver used in polyamide, epoxy, nitrile, phenol aldehyde adhesive and sealed material to improve the dispersion of pigment and the adhesion to glass, aluminum, iron, also applicable for latex coating such as polyamide, epoxy and acrylic acid type.

优异的粘结促进剂，可用于聚氨酯、环氧、腈类、酚醛粘胶剂和密封材料，改善颜料的分散性并提高对玻璃、铝、铁金属的粘合性，也适用于聚氨酯、环氧和丙烯酸乳胶涂料。

The results show that the resin property is better when aldehyde/phenol molar ratio is 1.5～2.0 and the compound catalyst is used; the foam plastic property is good when solid content is h...

结果表明：醛/酚摩尔比为1.5～2.0、采用复合催化剂时，树脂性能较好；固含量较高时，泡沫塑料性能好；泡沫密度增大，强度提高，但保温性能变差

Polarization curves measured in tap water at temperature of 70°C were compared for bare steel and that coated with same thickness of various coatings including phenol aldehyde epoxy film,nanoscale titanium polymer film and modified polyethylene film.

对裸钢及其涂覆相同厚度的不同涂层──酚醛环氧、钛纳米聚合物和改性聚乙烯后在70°C自来水中的极化曲线进行了比较。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48