查询词典 anti-desertification

BACKGROUND: Chinese herb tuber fleeceflower root can enhance learning and memory ability and anti-cerebral ischemia ability in rats,while 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside,the main effective component of tuber fleeceflower root,has very strong brain-protecting ef fects such as anti-oxidation and anti-aging.

背景：中药何首乌能够提高小鼠学习记忆和抗脑缺血能力，而二苯乙烯苷是何首乌的主要有效成份，具有较强的抗氧化与延缓衰老等脑保护作用。

Based on the deterioration mechanism of corrosive medium, a lot of polymer such as ternary-polymer, adding-felt addition, hydrophobe and polypropylene fiber were added to enhance the performance of anti-corrosion, anti-penetration, conglutination and anti-cracking of original cementious material. The microstrure of cementious material was changed from the simplex hydration product of cement to the superposition structure of the hydrolysate of polymer and the hydration product of cement. A lot of the corrosive ions were prevented from the interior of concrete by this stable structure. The results of tryout indicated that the mending material has the good effect at the corrosion form of corrosive medium.

根据介质腐蚀形式的劣化机理，该文以提高修补材料耐腐蚀性能、抗渗透性能、粘结性能和抗裂性能为出发点，采用添加有机硅改性三元共聚物、增粘剂、孔隙憎水剂等多种聚合物和聚丙烯纤维对原水泥基材料进行改性，使得修补材料的内部微观结构从单纯的水泥水化产物转变成聚合物和水泥水化产物叠合的空间网状结构，这种稳定的结构能有效抵抗各种介质离子的侵蚀，在实际工程上的试用也显示出新修补材料良好的使用效果。

There are four parts in this paper:The first part: the development of the anti-dumping legislations. Based on the analysis of the harm of dumping to the economy, it demonstrates the necessity and impendency of anti-dumping and points out the development and tendency of the anti-dumping legislations of the world.

全文分为四个部分：第一部分&反倾销法的历史演变与发展趋势&，论述了倾销对经济的严重危害和反倾销立法的重要性和迫切性，并分析国际反倾销立法的演变过程和发展趋势。

The methods of theory analyses and digital simulation have been used in this thesis and several schemes of strapdown guidance law based on analyzing the performance of several classical guidance laws have also been present according to the characteristics of strapdown Anti-Radiation homing seeker. The stapdown guidance systems were built for a certain Anti-Radiation missile, adopting acceleration autopilot and the attitude autopilot, and the paper has focus on analyzing the performance of low frequency strapdown Anti-Radiation homing seeker. The Approaches of lead correction and dead-zone relay control were given to improve the guidance precision, and also the increasable observability law was attempt and validate.

本文采用理论分析和仿真实验相结合的方法，在对经典制导律进行理论分析和验证的基础上，针对捷联反辐射导引头的特点，提出了捷联制导律多种设计方案，并以某型反辐射导弹为应用背景，分别采用姿态角反馈自动驾驶仪和过载反馈自动驾驶仪构造了捷联制导系统，重点基于反辐射导引头的低频端特性，开展了捷联制导律的导引性能对比分析工作，提出了应用超前校正和带死区继电控制提高制导精度的方法，并对提高可观测性的捷联制导算法的实现思路进行了尝试和验证。

Several anti-tumor cell lines and carbonic anhydrase Ⅱ model were established. More than 10000 compounds and extracts from plants were screened using these models and about 10 compounds showed strong inhibitory activities. Two species of plants Inula helianthus-aquatica and Saussurea deltoidea were chosen to investigate chemical and bioactivity constituents based on the results of screening of extracts and fractions. 58 compounds were isolated and identified from these two plants, 6 compounds were found to be new and 14 compounds showed anti-tumor activities. We also studied the anti-tumor mechanism of the compound bigelovin isolated from Inula helianthus-aquatica. Bigelovin was found with apoptotic activity against cell line U266 by lowering the amount of important transcription factor E2F-1 which inhibits the cell cycle at G0/G1 stage. Docking study on 7 natural new phenolic inhibitors of CA Ⅱ and 3D-QSAR study on 61 sulfonamide inhibitors of CA Ⅱwere also investigated. The calculated results were in good correlation with experimental results.

基于以上两种重要疾病和研究组方向，本论文工作开展了多个肿瘤细胞株和碳酸酐酶Ⅱ靶标模型的建立和筛选工作，累计筛选1万多个/次样品，发现10余个活性较强化合物；从粗提取物筛选结果中选取两种抗肿瘤活性强的菊科植物水朝阳旋覆花(Inula helianthus-aquatica)和三角叶凤毛菊进行了系统化学和活性成分研究，分离鉴定了58个化合物，发现6个新化合物和14个抗肿瘤活性化合物；通过合作对水朝阳旋覆花中活性较强的bigelovin进行了抗肿瘤作用机制研究，发现它可能是通过降低G2期重要的转录因子E2F-1，致使细胞周期阻滞在G0/G1期，引起多发性骨髓瘤U266细胞凋亡；开展了7个新的天然酚类CAⅡ抑制剂的对接研究和61个合成的系列磺酰胺类CAⅡ抑制剂的3D-QSAR分析，结果表明计算与实验一致。

MTT assay indicated that anti-proliferative activities in HeLa, SHIN3, HOAC-21 and HAC-2 cell lines were closely related to structure, 1,10-seco of eudesmane sesquiterpene lactone resulted in reduced anti-proliferative activity. The anti-tumor activity of isoalantolactone was probably achieved by inducing HeLa cell apoptosis.

提示A-环开环可能是导致桉叶烷型倍半萜内酯的体外抑制肿瘤细胞增殖作用消失或减弱的原因；异土木香内酯抑制肿瘤细胞增殖作用有可能是通过诱导肿瘤细胞凋亡机制而实现的。

In the past, Business card printing and membership card making enterprise anti-electrostatics the most commonly used product is anti-static brushes, but anti-static brushes can only be installed a letoff bodysites, and the effect is not very satisfactory.

畴前，制卡和会员卡制作企业不攻静电最常用的产物是不攻静电毛刷，但是不攻静电毛刷只能安设一个播卷部位，且成果不是很抱负。

In 0～20 cm soil layer, there is a considerable effect of herb plant root system on soil anti-shearing strength. Soil anti-shearing intensity (15.33 kPa) by Medicagosativais highest. Particularly in the 20～40 cm soil layer, Melilotus officinalisand M. sativacan drastically enhance soil anti-shearing strength.

试验表明，在0~20 cm土层4种草本植物根系均可显著增加土壤抗剪切强度，其中紫花苜蓿根系对土壤抗剪切强度的增强作用最大，其增大土壤抗剪切强度值为15.33 kPa；草木樨和紫花苜蓿根系在20~40 cm土层也能明显增大土壤抗剪切强度。

Objective To evaluate diagnostic value of anti-deoxyribonuclease B microtitration test in rheumatic fever. Methods Anti-DNase B antibodies of 87 patients with acute rheumatic fever and 202 rheumatic heart disease patients with rheumatic activity were detected with anti-DNase B antibody microtitration test,and compared with antistreptolysin "O" test.

目的 评估A组溶血性链球菌感染的血清学测定方法对诊断风湿热的临床价值方法采用抗DNA酶B微量法和自制试剂测定急性风湿热87例、活动期风湿性心脏病202例病人血清的抗DNA酶B抗体，与抗溶血素O抗体对照研究。

Suit a wide variety, complete specifications, and has a resistance Ran, moisture, mothproof, anti-corrosion, anti-acid, the effect of anti-alkali.

花色品种繁多，规格齐全、且具有阻然、防潮、防蛀、防腐、防酸、防碱之功效。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。