查询词典 prevent changes

It can make slow changes of soil temperature. It decreased the quick changes of soil temperature caused by the sudden changes of air temperature, and maintain the normal growth of the trees, in addition, it increased air humidity in plum orchard. It eased the drought status during period of high temperature. Sown grass in plum orchard can increase soil organic substance, total N, available N, available F, and available K.

果园生草可以使土壤温度变化缓慢，缓解气温的骤变造成地温的急剧变化，维持树体的正常生长；提高果园空气湿度，缓解了旱期由于高温干旱造成的生长停滞；提高土壤有机质、全氮、速效氮、磷、钾的含量。

The discovery of annual density bands of mass coral skeleton had a profound effect on coral paleoclimatology, and many patterns of density bands have been revealed throughout the global tropic ocean since then. At the first stage, people tended to explore the control factors of density changes from the environment where the coral grows, but they did not succeed. Since later part of 1980s, some researchers have focused on the skeletal architecture and integrated the signals of both environment condition and skeleton density bands to reveal the mechanism of skeleton density changes, and finally a model of skeleton growth was developed which can explain the almost existed patterns of skeleton density changes.

块状珊瑚骨骼密度条带年周期的发现对后来的珊瑚古气候研究产生了深远的影响，随后又发现世界各热带海域的珊瑚存在多种多样的骨骼密度变化模式，起先常从珊瑚的生长环境中寻找骨骼密度变化的控制因素，但是没有成功，从80年代后期，部分学者试图从珊瑚骨骼构架本身出发、综合考虑环境因素和骨骼密度条带之间的关系来探求骨骼密度变化的机理，并提出了一个可以解释大多数块状珊瑚骨骼密度条带变化模式的骨骼生长模型。

After long-term use of CRT monitors, three on-screen changes in the efficiency of light-emitting phosphor, or circuit board of a number of changes in component parameters, such as red, green, and blue driver transistor state changes may result in display color cast.

CRT显示器长期使用后，屏幕上的三种荧光粉发光效率发生变化，或电路板上的一些元件参数发生变化，如红、绿、蓝三色驱动三极管状态发生变化，都可能导致显示器偏色。

The result of factor analysis can provide the changes of relative precipitation and temperature variations. In trace elements, Cu, As, Zn, Pb and Ni were apparently enrichmented in soil layers and are sensitive to climatic changes. Carbon isotope is more sensitive to climatic changes than that of oxygen isotope in loess stratigraphy. The heavy mineral are varified in the loess stratigraphy, but their content differences between loess and palaeosol is little. Though the palynologic analyses results reveal that pollens and spores are fewer in the loess stratigraphy, they differ greatly in loess layer and palaeosol layer not only in species but also in types, i. e., the pollens and spores indicating warm and moist climate, such as Lles, Podocarpus, Polopydium, Pteris grerilliana Wall, Pterocarya and Juglans appear in palaeosol layers, while those indicating cold and dry climate such as Ephedra, Artemisia, Chinopodiaceae, Picea and Abies exist mainly in loess layers. The pollen content of broad-leaved tree mainly consisting of Pterocarya is up to 60% in palaeosol 〓, while the content of Ephedra is more than 50% in 〓 loess layer, showing that the environment differed greatly when 〓 and 〓 were formed.

当然，常量元素氧化物的组合因子分析结果可提供相对降水与相对温度在剖面的变化，因而来反映气候状况更为理想；微量元素中Cu、As、Zn、Pb与Ni在成土过程中富集明显，亦较好地反映了气候变化；稳定同位素中的碳同位素比氧同位素更能敏感记录气候的变化；研究区黄土地层中重矿物种类较多，但黄土层与古土壤层中含量差异不大；孢粉分析结果揭示，尽管研究区黄土层中孢粉总量相对较为贫乏，但黄土层与古土壤层中孢粉种属相差较大：在古土壤层内出现了指示相对暖湿环境的冬青属、罗汉松属、水龙骨属、林下凤尾蕨、枫杨、胡桃等植物孢粉，而黄土层中麻黄、藜科、蒿属及冷杉、云杉含量较高。

The original retail price index does not reflect the service consumer price changes, but at this stage of our people's consumption structure is undergoing drastic changes, for education, health care, culture, entertainment spending has risen, in the proportion of consumer spending growing. If the retail price index of commodities are to inspect the situation of consumer price changes on inadequate, and even have the wrong impression.

原有的商品零售价格指数不能反映服务性消费价格的变化情况，而且现阶段我国居民的消费结构正在发生剧烈的变化，用于教育、医疗、文化娱乐等方面的支出逐年上升，在消费支出中占的比重愈来愈大，如果仍以商品零售价格指数为主来考察居民消费价格的变化状况，就不够全面，甚至会产生错觉。

A series of indexes reflecting free radical changes, anti-oxidations, Immune function, endocrine function was studied by Chemiluminescence method, immunoturbidimetry, ANAE dye method, micro-hemagglutination inhibition test and radio immunoassay in the chicken with encephalomalicia induced by giving the feed being deficient in VE and extra fish oil artificially. The pathological changes including microscopic and ultramicroscopic changes in the relative organs and tissues were observed.

本实验以一日龄150只海兰兰蛋鸡为实验动物，用低维生素E且添加鱼油日粮饲喂雏鸡，复制脑软化症动物模型，采用化学发光法、免疫浊度测定法、酸性α-醋酸萘脂酶染色法、微量血凝抑制试验、放射免疫测定技术等方法系统地检测了脑软化雏鸡的自由基代谢和抗氧化功能、红细胞免疫功能、细胞免疫功能、体液免疫功能及非特异性免疫功能等指标，并对患雏病理组织进行了显微及超微结构观察。

Changes in blood flow are secondary to a relaxation of small arteries and arterioles, whilst changes in microvascular permeability, leading to inflammatory edema formation and cell accumulation, are mediated via changes that occur at the postcapillary venule level.

血管活性肽分子及其相关肽段可以内分泌的方式发挥循环激素的作用，还可以旁、自分泌的方式，通过其靶细胞表面的G蛋白偶联受体，在血管局部发挥其调节血管舒缩、细胞增殖迁移和分泌等复杂的生物学作用。

Results 28 cases of permeative node changes in lung, 25 cases of permeative spot and ground glass changes, 11cases of permeative griding and alveolate changes(64 cases in all). Making 75 times biopsy in regard to 64 cases.

结果 对28例弥漫性小结节病变、25例弥漫性斑片及磨玻璃状病变、11例弥漫性网格及蜂窝状病变（共64例）进行了75次切割活检，切割取材成功率 96.88%(62/64)；病理检查确诊率91.94%(57/62)，检查结果假性率17.74%（11/62），并发症发生率23.44%（15/64）。

E. staining and other techniques were used to elucidate the pattern of follicular development, atresia, changes in follicle number on the ovarian surface, proportions of apoptotic granulosa cells in follicles of different sizes and morphological changes of atretic follicles, as well as changes in serum estradiel and progesterone levels at different stages of the porcine estrous cycle.

为探讨猪发情周期不同时期卵泡发育和闭锁的规律及机理，本实验通过TUNEL原位标记、H.E。染色以及放射免疫测定等手段研究了猪发情周期不同阶段卵巢表面各类卵泡数量的变化、各类卵泡中颗粒细胞的凋亡比例、闭锁卵泡的形态变化以及发情周期各阶段血清孕酮及雌二醇水平的变化等问题。

MethodsNonheparinized autohemic blood of the rat was taken out from rat"s femoral artery and injected into its caudate nucleus immediately to establish a model of intracerebral hemorrhage.The changes of edema in the ipsilateral bassal ganglia , ipsilateral cortex, contralateral bassal ganglia and contralateral cortex were measured at 1,2,3,5 and 7 days respectively after intracerebral hemorrhage. The rat"s packed red blood cells, lysed red blood cells and hemoglobins at different concentrations were injected respectively into the rat"s caudate nucleus. The changes of edema in various regions of the brain at different time were measured as above. 5U thrombin was injected into the rat"s caudate nucleus and the changes of edema in various regions of the brain at different time were measured as above.

自体股动脉取血，并采用自体未肝素化新鲜血回注法建立大鼠尾状核出血模型，观察脑出血后1，2，3，5，7天血肿同侧基底节区、血肿同侧对应的皮质区、血肿对侧对应的基底节区及血肿对侧对应的皮质区脑组织水分含量的变化；分别以自体浓缩红细胞(PRBC，50％)、溶解红细胞(LRBC，50％)、不同浓度的大鼠血红蛋白注入大鼠尾状核，并观察不同时间不同部位脑组织水分含量的变化；以5U凝血酶注入大鼠尾状核，观察不同时间不同部位的脑组织水分含量的变化。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。