这些牙膏或牙粉含有粗槽的磨牙剂,使用龈线上的牙齿的磨损增加。
Sometimes they contain rough abrasives that cause increased abrasion of the teeth at the gum line.
在硫酸的催化作用下,竹废料在由聚醚多元醇和粗甘油组成的混合液化剂中可被液化成多羟基化合物。
The bamboo residues could be liquefied to be biopolyol in the mixed solvent of polyether alcohol and crude glycerol under the catalysis of concentrated sulfuric acid.
讨论了淀粉、粗玉米粉及可以被淀粉所依附的纤维素框架的化学结构及性质,它们可能成为一系列用途广泛的干燥剂。
The starch, corn grits, and cellulose frame adhered with starch may be a series of desiccants with broad uses, and their chemical structures and properties are reviewed.
生物质气化粗燃气流态化重整,避免了燃气中颗粒物对重整器的堵塞,促进了催化剂的还原,并抑制了催化剂的表面积碳。
The fluidization of catalyst in the reformer had a role of avoiding the blockage of reformer, promoting the catalyst reduction and suppressing the carbon deposition on the surface of catalyst.
卵磷脂是一种天然表面活性剂,在许多方面有重要的应用价值。本文详细介绍了大豆卵磷脂的粗提、提纯、测定和改性方面的研究成果。
Lecithin is a natural surfactant. It has important application value aspects. In this paper, the purification, determination and modification of soybean lecithin in research are discussed in detail.
对于以沥青质、胶质为主要成分的有机垢堵塞,确定以粗苯-柴油(9∶1)复配体系为有机解堵剂;
For the organic scales mainly composed of asphaltene and gum, an organic scale remover containing benzol and diesel (9:1) is selected.
评述了世界上最新的煤液化粗油提质加工工艺和催化剂。
Up to date processes and catalysts in the world for upgrading heavy coal liquids have been reviewed.
以负载型铜、镍催化剂为加氢催化剂,液相加氢还原粗仲辛醇中的2辛酮制备高纯度仲辛醇。
The supported copper and nickel catalysts are applied to preparation of purified octanol 2 by using hydrogenation reduction.
结果表明粗铝粉在推进剂中使用是可行的。
The experimental results indicate that coarse aluminium powder can be used in HTPB propellant.
通过对防火涂料贮存后耐水性差、贮存返粗、增稠、原因研究,发现涂料基料和阻燃剂是产生涂料贮存不稳定的主要原因。
The effects of the emulsion and intumescent systems on the storage stability and water-resistant performance of the fireproof coatings were discussed in the study.
结果表明:乙二醇二甲醚为提取剂,粗产品中双黄酮类成分较高;
The results showed that using solvent ethyl diol dimethyl ether, biflavone content in crude extractings is higher than that obtained by using other solvents.
并考察了反应时间,原料的不同配比和催化剂用量对粗酯重量产率的影响。
The influences of reaction time, ratio of raw materials and amounts of catalyst on yield of crude esters were studied.
以辣椒自交系B17、B25为试材,用子叶外植体诱导愈伤组织,以辣椒疫病痛原菌粗毒素作为选择剂, 筛选抗疫病辣椒变异体植株。
Under the inhibition of crude toxin derived from Phytophthora capsici, some somaclonal variation lines were selected from the callus induced from cotyledons of two pepper inbred lines -B17 and B25.
结果表明:这种结晶添加剂能减少种分溶液中细粒子数,加强附聚作用的进行,粗化产品粒度,提高产率。
Results showed this additive reduced the quantities of smaller particles, intensified the agglomeration process, increased the particles size and enhanced production rate of products.
粗甘油三酯与各种吸附剂和离子交换树脂接触,以降低杂质的含量。
Crude triglycerides are contacted with a variety of adsorbents and ion exchange resins to reduce the levels of impurities.
公开了一种方法,其中在球磨中与磨料和冷粘着粘结剂一起处理粗二氧化硅、氧化钙和氧化镁源。
A process is disclosed in which coarse silica, calcium oxides and magnesium oxides are treated in a ball mill together with grinding AIDS and cold-strength binders.
所述粗效滤料装填口与吸附剂装填口分别有四个,并在圆周上均匀分布,在径向上是交错的。
Four coarse filtering material filling openings and four absorbent filling openings are evenly distributed around the circumference and are staggered along the radial direction.
本发明提出一种适用于从粗粒钨锡多金属硫化矿中粒浮脱硫工艺流程的无臭味捕收剂。
The invention provides a smell-less catching agent used in granular floatation sulphur removal process of coarse-grained tungsten-tin multimetal sulphuretted ore.
本发明的饲料添加剂的制备方法包括以下步骤:粗磨;细磨;精磨。
A preparation method for the feed additive comprises the following steps: coarse grinding, fine grinding and precision grinding.
以含有多个氮原子的组氨酸对强碱型阴离子树脂进行修饰,获得一种新型的离子交换剂。用该离子交换剂对透明质酸粗品进行离子交换层析,使透明质酸与蛋白质、核酸达到有效的分离。
A novel ion exchanger prepared from a strong anion resin modified with histidine was used for purifying crude hyaluronic acid to achieve a successful separation from protein and nucleic acids.
运行结果表明,该催化剂的强度、催化活性和烧炭再生性能均能满足该厂粗煤气变换装置的要求。
The run results showed that the strength, activity and regeneratibility of QDB-04 catalyst met the requirement of the plant on raw coal gas CO shift reaction.
他们也没能用粗拙地研磨剂来造出条纹来完成准确地几何证实。
Nor do they have the striations caused by a rough abrasive that could have been used to achieve the exact geometries they demonstrate.
粗产物经简单蒸馏,苯乙烯的总回收率为89.41%,苯乙烯单体纯度可达99.9%以上,并对催化剂进行再生利用,效果较为理想。
Crude product by simple distillation, styrene recovery was 89.41% of total styrene monomer purity of 99.9%, and catalyst recycling, the effect is better.
含铁金属氧化物来源广泛、价格低廉、反应速率快、硫容高,是备受关注的粗脱硫用吸附剂的活性组分。
Iron oxide with the high sulfur capacity, the high reactivity, extensive sources and low price is considered as one of the most favorable sorbents for bulk removal of H2S.
含铁金属氧化物来源广泛、价格低廉、反应速率快、硫容高,是备受关注的粗脱硫用吸附剂的活性组分。
Iron oxide with the high sulfur capacity, the high reactivity, extensive sources and low price is considered as one of the most favorable sorbents for bulk removal of H2S.
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