There are two methods on the synthesis of isophorone: mesityl oxide method and acetone condensation method.
异佛尔酮的合成方法有异丙叉丙酮法和丙酮缩合法两种。
The problem with this method is that methane and nitrous oxide emissions fluctuate strongly in time and space.
这种方法的问题是，甲烷和一氧化氮的排放量在不同时间和空间波动很大。
TDDB(time-dependent dielectric breakdown)is a key method to value the quality of thin gate oxide.
经时绝缘击穿（TDDB）是评价薄栅氧化层质量的重要方法。
The method of the present invention can greatly increase evenness of the grid oxide layer.
采用本发明的方法可大幅提高栅极氧化层的均匀性。
OBJECTIVE To study the preparation method of zinc oxide film and quality control.
目的：探讨复方氧化锌涂膜剂的制备及质量控制方法。
Flame Deposition Technique is one of method of preparing nanostructured Vanadium phosphorus Oxide.
火焰沉积技术是制备纳米级钒磷氧化物的方法之一。
Oxide magnetic materials, making method, antenna coils, and inductance elements.
氧化物磁性材料，制造方法，天线线圈，和电感元件。
The new method involves passing a current through a molten pool of iron oxide, which drives off the originally sought-after oxygen.
新方法的步骤则包括向熔炉里的氧化铁通电，从而释放原本就炙手可热的氧气。
With this method the temperature of barium tungsten cathodes and oxide cathodes in baking can be estimated out simply and conveniently.
采用这一方法可简便地估算出钡钨阴极及氧化物阴极在烘排时的温度。
The invention relates to a method and a device for preparing nanometer oxide powders without agglomeration.
本发明涉及一种无团聚纳米氧化物粉体的制备方法及装置。
The principle, method and equipment of the catalyzed electrolytic plutonium oxide dissolution(CEPOD) are described.
概要综述了催化电解法溶解钚氧化物（CEPOD）的基本原理、方法和装置。
A new heat extraction method for determining oxide inclusion in steel was developed.
开发了差热抽取测定钢中氧化物夹杂的新方法。
Black oxide film was prepared on alloy structural steel by electrochemical method.
采用电化学的方法在合金结构钢表面形成一层黑色氧化膜。
Compared with weight method and volume method, determination of the contents of strontium oxide in Bluestone using AAS was more simple and accurate, and few factor disturbed the method.
与重量法及容量法相比，采用火焰原子吸收分光光度法(AAS)测定天青石样品中的氧化锶含量，方法简单准确，干扰因素少。
Nitric oxide (NO) content in pulmonary tissues was determined using nitrate enzyme reduction method.
同时用硝酸还原酶法测定肺动脉组织一氧化氮(NO)含量。
The sol-gel process is a method to prepare metal oxide by using alkoxy metal salt or metal inorganic salt.
溶胶-凝胶过程是是一种用金属烷氧化物或金属无机盐在较低温度的条件下制备金属氧化物的方法。
This is a novel, environmentally friendly and economical method for making propylene oxide without co-product.
这是环境友好、无联产品、经济合理的制环氧丙烷的新方法。
The application of the active zinc oxide instead of the indirect method zinc oxide was experimentally investigated in the tread compounds of bias ply tire and steel-belted tire.
试验研究以活性氧化锌减量替代间接法氧化锌在斜交轮胎和半钢子午线轮胎胎面胶中的应用效果。
Method the glutinous ozone oxide was produced rapidly by inserting the ozone-bearing oxygen current in the nonaqueous solution of liquid alkene.
方法将含有臭氧的氧气流，通过液态烯烃的非水溶液中，迅速生成粘糊状的臭氧化物。
The preparation of nanometer active zinc oxide from crude zinc oxide by ammonium bicarbonate method was introduced.
采用碳酸氢铵法由粗氧化锌制备纳米活性氧化锌。
Gold and reducible oxide-based composition, method for the preparation and the use thereof in the form of a catalyst, in particular for carbon monoxide oxidation.
基于金和可还原氧化物的组合物，其制备方法和其作为催化剂的用途，尤其是用于一氧化碳的氧化。
This formula applies one of the longevity conditions of Bama people: lung function improving method — a principle that the high content of negative oxide ions in the air makes people live long.
此配方应用了巴马人长寿条件之一：肺部功能提高法——空气中负氧离子含量高而让人长寿的原理。
This method could determine many non-REE in enriched-europium mixture rare earth oxide at a time and it was a rapid method.
该方法能同时测定富铕混合稀土氧化物中多种非稀土元素的含量，提高了分析速度。
Methods Levels of nitric oxide and nitric oxide synthase were measured by color matching method in 32 asphyxia neonatorums as well as 30 normal neonates.
方法采用比色等方法测定32例窒息新生儿及30例正常新生儿血浆一氧化氮、一氧化氮合成酶活性水平。
The properties, uses, preparation method and modification of transparent yellow iron oxide pigments are introduced.
介绍了透明氧化铁黄颜料的性质、用途、制备方法以及改性处理。
Good metal and metal oxide films were produced by this method.
用于金属膜和金属氧化物膜的制备，已获得了很好的效果。
The nitrogen, which is in ammonium in the ammonia sulfite pulping waste liquor of rice straw, is converted into organic nitrogen by using oxide-ammonium decomposition method.
稻草亚硫酸铵法制浆废液采用氧化氨解的方法，将废液中的铵态氮转化为有机氮。
The major production methods of titanium oxide are sulfate method and chlorinate method.
二氧化钛的生产方法主要分为硫酸法和氯化法两种。
The major production methods of titanium oxide are sulfate method and chlorinate method.
二氧化钛的生产方法主要分为硫酸法和氯化法两种。
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