查询词典 prevent changes

Through this research, draw the following conclusions:(1) Through analyzing the changes of structure and area of first-class and second-class landscape, foundings show that in the past ten years, the main character of landscape pattern changes is natural secondary forest land and dry land reduced but human effect forest land and waste-grassland expanded in research area.

通过本文的研究，得出以下几点结论：(1)通过对一级与二级景观面积和结构的变化特点分析发现：近十年来研究区景观格局变化是以天然次生林地和旱地的缩小及人为影响林地与荒草地的扩张为主要特征。

Meanwhile, the Civil Aviation Authority would work with the State price management departments in research based on the cost and other aspects of airline changes, appropriately increasing the freight tariff announcement, so that prices better reflect the costs of airlines and market changes, more well adapted to production and operation needs of airlines.

同时，民航局将会同国家价格管理部门，在调查研究基础上，根据航空公司成本费用等方面情况的变化，适当提高货运公布运价，使价格更好地反映航空公司的成本和市场变化，更好地适应航空公司生产经营需要。

In Scandinavia, the Elder Futhark remained in use until some time around the eighth century, when drastic changes in the Old Norse language occurred, and corresponding changes in the runic alphabet were made to accommodate the new sounds.

在斯堪的纳维亚，老Futhark仍然使用，直至一些公元8世纪左右的时间，当在古诺尔斯语发生了急剧变化，在卢恩字母了以适应新的声音相应的变化。

Methods BTXA labeled with125Iwas obtained. The radioactivitymeasurementwas taken tomeasure the solubility ofBTXA in gel and BTXA solution. The rightgastrocnemiusmuscles of12 SD ratswere injectedwithBTXA geland the leftgastrocnemiusmuscles injectedwith normal salinewere used as controls. HE staining and 1% gold chloride stainingwere used to study the tissue changes 6 months and 12 months afterBTXA gel injection and transmission electronmicroscopy was used to observe the ultrastructural changes.

将BTXA行示踪标记配制125I-BTXA水凝胶与125I-BTXA水溶液，进行样品放射性强度测定。12只SD大鼠用随机数字表法分为A、B两组，每组6只，大鼠右侧腓肠肌注射BTXA水凝胶，左侧腓肠肌注射等体积生理盐水作对照，于注射后6个月、12个月切取腓肠肌标本，常规病理HE染色、1%氯化金染色，透射电子显微镜观察组织结构变化。

Changes in output voltage due to thermal gradients or temperature changes must be taken into account separately.

在输出电压由于热梯度变化或温度变化，必须考虑到分开。

The purpose of this laboratory activity is to determine whether the time of flight of a ball launched horizontally off a table on level ground changes as the initial speed changes.

本实验的目的是测定从水平面上的工作台水平射出的小球的飞行时间是否随着初速度的变化而变化。

Accompanying salinity variation, the density of cells and the structure of particle cells in the head kidney underwent some marked changes. However, the structure of lymphocytes and monocytes showed no visible changes.

水体盐度变化使实验鱼头肾中细胞排列的紧密程度、粒细胞结构发生了明显变化，而淋巴细胞、单核细胞未观察到明显变化。

Changes after death separately changes the body is "Amulet Heart","Amulet Spade" and "Amulet Clover",,.

变身后就分别变身为「Amulet Heart」、「Amulet Spade」与「Amulet Clover」，，。

The results showed that the sheep had fibrinous pneumonia and lymphocyte interstitial pneumonia, which were typical pathologic changes of this disease. Remarkable changes were observed in the lung: fibrinous exudates, infiltration of inflammatory cells, pleura thickening, interstitial edema, hemorrhage and formation of thrombiand lymph clot. The heart, liver and kidney had different degeneration degree. Reactive hyperplasia presented in bronchales lymphonodi.

结果发现该病例具有胸膜肺炎的典型病理变化，呈现纤维素性肺炎和淋巴细胞性间质肺炎，纤维素性物质的渗出和炎性细胞的浸润很明显，肺胸膜增厚，同时在肺间质还可见水肿、出血、血栓和淋巴栓的形成；另外心、肝、肾也均有不同程度的变性，淋巴结呈反应性增生。

It will take time to answer the big questions: why so many changes are happening so fast; whether abrupt, extreme events like cyclones and ice melts will lead to a cascade of other events; how cause and effect interact in complex ecosystems where small changes may be synergistically amplified.

解决一些大的问题需要时日：为什么很多这样的变化发生得如此快？是否突发的、极端的，象飓风和冰化这样事件，将导致一连串的其它事件？在复杂的生态系统中因果之间怎样相互影响，而且小的变化在相互作用中会被放大吗？

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。