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Nevertheless, human activities changed the natural environment greatly; they changed the landforms and destructed the ecological environment.

但人类的活动大大地改变了自然环境，他们改变了地形，破坏了物种的生态环境。

It was found during the experiment:the influence of gas flux under lower bound was distincter for benzene thanformaldehyde; there was no reaction heat produced during the process, so the temperature did not changed much; the relative humidity changed differently becauseof gas flux, absorbency and water vapor produced during experiment.

实验发现：低流量范围内流量对苯的降解效率影响比对甲醛的影响明显；光催化降解过程中，温度变化不大，反应生成热很少；由于气体流量、催化剂对气体的吸附以及反应生成的水蒸气的影响，光催化降解过程中，反应系统气相体系的相对湿度会有所变化。

The results of the study on the plant communities among the stages of regressive succession indicated that the dominants and components of the communities changed with the aggravation of degradation, and the plant communities changed from the grass family-dominant community to the forbs-dominant one.

： 通过对高寒矮嵩草草甸不同退化演替阶段植物群落的研究显示，随着退化程度的加重，群落的组成和优势种等发生了很大的变化，植物群落从以禾本科为主，向以杂类草为主的群落演替。

Aulds want to be changed youngers and guly dreams to be changed pretty.

老的想要变年轻，丑的想要变漂亮。

In this paper, based on the experiments. The changed law of underwater gun's bore are analyzed with the changed working conditions, including the change of working medium?

对坡膛压力在不同工作条件下的变化规律进行了分析，包括工作介质的变化、水深的变化、弹头质量的变化等。

At the second turn, a bunch of fresh violets, thrown from a carriage filled with harlequins, indicated to Albert that, like himself and his friend, the peasants had changed their costume, also; and whether it was the result of chance, or whether a similar feeling had possessed them both, while he had changed his costume they had assumed his.

兜到第二圈，从一辆满载着女丑角的马车里抛来了一束新鲜的紫罗兰，阿尔贝马上明白了，象他和他的朋友一样，那些农民也换了装，而不知究竟是由于偶然的结果，还是由于双方有了一种心心相印的感觉，以致他换上了她们的服装，而她们却换上了他的。

He nodded bock to barkeeper first, like that after draws out ant from the pocket put on the desk, say to barkeeper:"See this ant..." that barkeeper comes over, on the horse one pats ant dead, be very sorry about the ground to say to him next: I am sorry, one cup is changed to give you newly on my horse! One cup is changed to give you newly on my horse!!

他先向酒保点了一杯啤酒，然後把蚂蚁从口袋里掏出来放在桌上，向酒保说：&看看这只蚂蚁……&那酒保过来，马上一把将蚂蚁拍死，然后很抱歉地对他说：&对不起，我马上换一杯新的给你！&

Twenty percent of respondents who had already quit their surgical careers had changed their specialty to family physician, while 11.2% of them had changed to internists or pediatricians.

有11.2%的外科医师已经离开外科工作，其主要原因为健保给付不合理，太过劳累，压力太大及怕医疗纠纷。

The results showed that, after induced for 4~5 d by dexamethasone, beta-glycerophosphate and ascorbate-2 phosphate, the volume of some cells of the goat MSCs gradually largened and changed their form from spindle/polygon to cuboid/ovoid; With the induce time continuing, the numbers of the cuboid/ovoid cells continuous increased; At 15th day, there were many cuboid cells, and the modality of the cells changed from cuboid to ovoid; At 25th day, the oval and cuboid cells accumulation were observed.

结果表明，山羊MSCs在地塞米松、β-磷酸甘油和抗坏血酸的作用下，从诱导的第4~5天开始，即可见有些MSCs体积逐渐增大，由梭形或多角形转变为立方形或卵圆形；随着诱导时间延长，立方形或卵圆形细胞不断增多，到第15天时，有较多的立方形细胞，且这种变化经历了从立方形向卵圆形转变的过程；第25天，可见卵圆形和方形细胞堆积，诱导分化率为90.2%± 2.97%。

The loads including:the earth pressure changed by the depth,the lyophobic additional force changed by the time,and the weight of the shaft sidewall.

运用这两种模型详细研究了多种荷载耦合作用对立井井壁的影响，多种荷载包括：随深度变化的土压力、随时间变化的疏水附加力以及井壁自身重量。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。