查询词典 essential resistance

The resistance management of Plutella xylostella that represents one of the extreme cases of insecticide resistance in arthropods is a hard and serious problem in the world.

小菜蛾抗药性的治理是一个世界性难题，目前的研究大多仍处于生理生化水平，对抗药性的遗传和分子基础不甚清楚。

The results from modeling and that from bioassay with Plutella xylostella appear to have a better consistency. It suggests that the resistance simulation modeling might be useful for predicting and analyzing the evolution of resistance of pest population to insecticides.

以小菜蛾Plutella xylostella为模型昆虫所作的试验结果表明，模型模拟与验证试验的结果具有较好的一致性，说明抗性模拟模型可用于害虫种群的抗性演化预测和分析。

Ultra-high molecular weight polyethylene is a special product in technical plastics which possesses a number of outstanding properties,including high toughness, high wear resistance, very good resistance to chemicals. It is poisonless, no pollution and contamination, recyclable, and size-stable as it resists to moisture and water absorption.

超高分子量聚乙烯性能优异，无毒、无污染、能回收利用、不吸水、尺寸稳定、抗磨损性能卓越、冲击韧性高、吸震防噪、摩擦系数小、不粘附、并且具有自润滑、耐低温、耐腐蚀的特性，是一种对环境和人体友好的绿色材料，广泛用于机械、食品、医疗设备等行业。

In order to raise the hydrolysis resistance of ester oil, a new polycarboxylic acid ester is developed and its hydrolysis resistance is better than that of average polyol ester.

为了提高酯类油的抗水解性能，开发了一种新型的多元酸酯，其抗水解性能优于多元醇酯。

This project is to make aeroconcrete through the high temp and high pressure to make it into poriferous AAC with the tail quartz sand as the main material, the cement and lime as agglutinant featuring wind block, warm-keeping, sound/heat insulation, water/humidity resistance, antifreezing, vibration proof, acid/alkaline resistance, partial load bearing, large size and weight light, shape formed optionally, moreover, it is a new building material of mast processing possibility since it can be sawed, drilled and nailed so as to save masonry sand and slurry and quicken the process and simplify the operation.

本项目加气混凝土主要是以石英尾砂为基础，以水泥和石灰为胶和剂，经高温高压养护而成的多孔状AAC。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测，确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力，对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟，与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比，模拟的相对误差在±15%以内；模型敏感性分析发现，温度、LAI以及rsi是决定模拟结果的主要参数，模型对各参数变化反应不敏感。

Further analysis revealed that around 40 percent of lines with normal glume hardness were resistant to preharvest sprout. Although the top 50 lead lines with resistance to preharvest sprout showed significant correlation between glume hardness and preharvest sprout resistance.

进一步分析发现，尽管群体中穗发芽抗性较强的株系中，其抗性与硬颖壳有显著的相关关系，但是，仍有40%左右的株系表现为正常颖壳硬度却抗穗发芽。

In other words, these characters not only reveal that there could be dissimilarities and even conflicts in the subaltern group, but also bring out the possibility of a passive kind of resistance and therefore problematize the general notion of resistance as the revolutionary action.

也就是说这种消极性反抗提出了相对於革命这类反抗运动的另一种可能。

In this study, the genomic structure and regulatory elements of ApoD from 10 representive species including protozoan, invertebrate, protochordate and vertebrate were analyzed and compared. The genomic structure of ApoD is less conserved in organisms from protostome to deuterostome invertebrates, while it is highly conserved among chordates including amphioxus and verebrates. All four conserved cysteine residues are present in amino acid sequence of deuterostome ApoDs, while there are only two cysteine residues in amino acid sequence of protostomes ApoD. Structure divergence between protostome and deuterostome ApoD proteins suggests their function difference. The majority of regulatory elements are present in nearly all organism ApoD genes ranging from unicellular protozoan to mammals, suggesting that ApoD plays a very fundamental role, and possesses a conserved regulatory mechanism. However, there also exist some specific regulatory elements, which are present only in certain species and may perform some special roles.ApoD mRNA expression in murine NIH/3T3 fibroblasts exposed to various stresses such as as hydrogen peroxide and UV light shows dose-dependent increase. And a fly homolog of ApoD, Glial Lazarillo, whose overexpression results in increased resistance to hyperoxia as well as a extension of lifespan under normoxia and resistance to starvation without altering lipid or protein content.

本文首先从生物信息学角度对分属于原生动物、无脊椎动物、头索动物和脊椎动物类群的10种动物ApoD的基因结构及调控区的调控元件进行分析及比较，发现：(1)ApoD基因外显子-内含子结构从原生动物草履虫到原口动物再到后口动物海胆的进化过程中不保守，但在分析的几种脊椎动物中相当保守；(2)文昌鱼ApoD基因扮演从无脊椎动物到脊椎动物承上启下的角色，可能代表了脊椎动物ApoD基因原型；(3)四个半胱氨酸保守位点在后口动物中都存在，而在原口动物中只存在两个，原口、后口动物ApoD蛋白一级结构上的差异反映蛋白功能上可能也存在一定差别；(4)调控区大多数主要调控元件为不同动物共有，说明ApoD主要功能及其表达调控在进化中相当保守；(5)ApoD基因个别调控元件是随着物种进化而出现并开始发挥相关作用，如SF-1；还有一些调控元件在进化过程中还没有发现其规律，这说明ApoD某些功能和基因表达调控模式可能因物种不同而存在一定的差异。

All of these had shown that the induced resistance could be transmitted.Oligosaccharides had not shown any direct activity against Puccinia striifomis in vitro. This suggests that Oligosaccharides can elicit resistance to diseases of wheat, and are different from common pesticides.

不同浓度(25ppm、50ppm、100ppm)的5号提取物的体外抑菌试验表明，低聚糖对条锈菌没有明显的抑制作用，说明低聚糖不具有直接杀菌或抑菌作用，使小麦产生抗锈性的原因在于诱发寄主植物的抗病潜能，使植物本身产生对病原菌的抗性，这与普通杀菌剂显然不同。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。