查询词典 degraded

It is urgent to take measures to protect the land resources and rehabilitate degraded and desertified land in the ecotone.

为了使森林—草原交错带的土地资源可持续利用，采取措施保护森林—草原交错带的土地资源并对退化沙化的土地进行整治和恢复是十分必要的。

The role of IdaA in the EDTA degradation pathway was also studied. Since IDA oxidase also degraded EDDA relative efficiently, it may also be responsible for EDDA metabolism in EDTA degradation pathway.

另外一个重要发现是IDA氧化酶还可以高效利用EDTA的代谢中间产物EDDA作为底物，因此我们又对EDTA的部分降解途径进行了研究，结果显示EDTA降解菌BNC1中的IDA氧化酶可能非但负责IDA的降解，而极可能也催化EDDA的降解。

Because of the presence of the difference of the gray value and the distortion between the object image and the reference image, traditional matching method will be degraded. We need more useful characters. Eigenspace approach is a promising candidate for an appearance-based object representation.

文中提出基于奇异值分解的跟踪算法，算法首先建立模板图像训练集合，利用奇异值分解方法，张成模板图像特征空间，然后求出模板图像在特征空间里的投影值，代替传统算法中灰度对两幅待匹配图像进行的全局搜索定位。

Appropriate clearance of apoptotic cells is an important step of programmed cell death. Although genetic and biochemical studies have identified several genes that regulate the engulfment of cell corpses, how these are degraded after being internalized in engulfing cell remains elusive.

中科院遗传与发育生物学研究所杨崇林课题组以秀丽线虫为模式研究程序性细胞死亡，通过遗传分析、基因表达、蛋白定位等实验手段，发现vps-18基因在凋亡细胞的降解过程中发挥重要作用。

An O2-labile protein (hypoxia-inducible factor 1, HIF-1) has been identified that is hydroxylated and degraded under normoxic conditions but actie in hypoxia, where it enhances Epo gene transcription resulting in eleated hemoglobin leels and O2 capacity of the blood. The stimulation of Epo production at lowered arterial O2 tension can be maladaptie, if erythrocytosis deelops such as seen in high altitude habitants.

此途径因提高了体内血红蛋白水平，加强了epo基因转录和氧运输能力。epo 在动脉低氧情况下的产生使机体不适应－－这种情况就如同世居高原人群中的细胞因子发生变化一样。

TDI-based polyurethane has degraded to a quinone-imine under UV-irradiation, which leads to the phenomena of etiolation.

结论对用于文物保护的丙烯酸类涂料和聚氨酯类涂料，丙烯酸类的涂料性能更优异。

The effects of exclosure on the recovery of degraded grassland by influencing seed bank were reviewed.

总结了围封对土壤种子库的影响及其在草地恢复中的作用。

Exclosure is considered as one of effective measures for degraded rangeland restoration, and its effectiveness is influenced by soil seedbank conditions to the extent.

封育是退化草场恢复的重要措施之一，封育的效果在一定程度上取决于土壤中种子库的状况。

Therefore, we should control the exclosure time scale well to exert its positive effects on recovery of degraded grassland and avoid the negative influences on grassland due to the improper utilization of exclosure measure.

对围封作用要有全面的科学认识，把握好围封的时间尺度，以充分发挥其在退化草地恢复中的作用，避免由于利用不当而对草地产生的负面影响。

This research was conducted in degraded rangeland at the southwestern edge of the Mu Us sandland, Yanchi county, Ningxia, the soil seedbank features and its relation to vegetation was analyzed using similarity analysis and ordination method, the results show that seeds within soil distribute mainly in 0~5 cm soil layer, less seeds in 6~15 cm soil layer in exclosed and non-exclosed rangeland, for seeds in exclosed soil, species richness and diversity index H are higher, while D is lower, exclosure measure, generally speaking, can increase plant species and amount of vegetation and seeds in soil, some annual plants, mesophytes and halophytes appears in the soil or surface.

以毛乌素沙地西南缘宁夏盐池县的退化草场为研究对象，采用相似性分析和排序方法对封育和未封育草场土壤种子库的特征及其与地上植被间关系进行了研究，结果表明无论封育区还是未封育区，土壤种子库中的种子主要分布于0~5cm的土层，6~15cm土层的种子数很少；封育区土壤种子库的物种丰富度大于未封育区，物种多样性则表现为H 值较大，而D值较小，总体上看封育措施可以提高地上植被和土壤中种子的种类和数量，一些一年生植物、中生植物和盐生植物开始出现在地面或土壤种子库中。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失