查询词典 protective agent

Protective cover, also known as achromatous epikarst, clear nitrocellulose lacquer and other supporting agent coating, and can be used as needed in which various patterns of processing.

、保护层，也称表层，由无色硝基清漆和其它辅助剂经涂布而成，并可根据需要在上面进行各种花纹图案的加工。

Objective To study the protective action of compound agent madeup with effective ingredients of Hirudo and Rhizoma chuanxiong and Folium Ginkgo in animal ischemic cerebral infarction.

目的 探讨用中药水蛭、银杏、川芎的有效成分组成的复方制剂对动物局灶脑缺血的保护作用。

Davidia involucrate, a relic species of paleotropical kingdom in Tertiary period and belonging to Davidiaceae with a single genus, is one of the first-class protective plants in China. In this paper, a pot culture experiment with quadratic general rotation design was conducted to study the effects of CaCl2, salicylic acid, and a water-retention agent on the drought resistance of D.

采用二次回归通用旋转组合设计，对国家一级保护珍惜植物珙桐幼苗进行盆栽控水试验，研究了水分胁迫下氯化钙(CaCl2)、水杨酸和保水剂对珙桐幼苗抗旱性的影响。

PVP as protective agent confined the aggregation of nanoparticles, which led to small size pure NiFe〓O〓 nanocrystals.

PVP限制了纳米颗粒的聚集，从而得到了小尺寸纯的NiFe〓O〓纳米晶粒。

If protection goal is to prevent the pan-alkali, or rust and so on, generally use the organosilicon stone protective agent to be able to achieve the effect.

如果防护的目的是为了防止泛碱、生锈等，一般采用有机硅型石材防护剂就可以达到效果了。

Using slow-adding and fast-agitating method, protective coating is prepared by adding proper filler, plasticizer, curing agent, solvent and so on, then the formula is optimized according to analysis of the performance of self-production and other production made at home and abroad, including appearance, viscosity, solid content, corrosion resistance, etching ratio, compactibility, bonding force and peelable ability.

在基料中配以合适的填充剂、增塑剂、固化剂和溶剂等，采用慢加快搅法制备此种涂料，并通过对比自制涂料和国外化铣保护涂料的性能及分析数据，即外观、黏度、固体含量、抗蚀性、浸蚀比和致密性，优化保护涂料的配方。

Bezaldehyde was used as protective agent in first method.S-Epichloeohydrin was aminated and acidulated to give(2S)-1-Amino-3-...

通过正交实验对该方法噁唑烷酮环形成反应的条件进行了优化。

Bezaldehyde was used as protective agent in first method.S-Epichloeohydrin was aminated and acidulated to give(2S)-1-Amino-3-chloro-propanol Salts.The acetylation of (2S)-1-Amino-3-chloro-propanol by acetic anhydride produced the intermediate-N-[2--3-chloropropyl]acetamide.And then at 20℃,in the presence of lithium tert-butoxide,benzyl 3-fluoro-4-morpholinophenyl carbamate react with-N-[2--3-chloropropyl]acetamide to give linezolid in total yield of 43.6%.

路线一采用苯甲醛作保护剂，使S-环氧氯丙烷氨解、酸化生成S-1-氨基-3-氯-2-丙醇盐酸盐，然后经乙酰化反应后，生成中间体-N-[2-乙酰氧基-3-氯丙基]乙酰胺，再用N-(3-氟-4-吗啉苯基)氨基甲酸苄酯和中间体在催化剂叔丁醇锂存在下25℃反应生成利奈唑酮，总产率达到43.6%。

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。

Some of the construction unit also specially design a set of construction equipment on the wet quartz stone dry protection, this device has a rectangular soaking trough, followed by a drying rack, the protective agent trickled from the plate will flow automatically and return to the soaking trough.

有些施工单位还为此专门设计了一套施工装置对潮湿石材乾地防护施工，这套装置安装了一个长方形的浸泡槽，后面是一个晾干的架子，晾干板才时所滴下的防护剂可自动流回浸泡槽。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。