主要原因

On the basis of the analysis of the function of the system,the integrated safety management system's framework,organizational structure,working pattern and working flow were presented.

道路安全系统是一个人、车、路、环境综合作用的复杂系统，虽然事故上升的原因很多，但交通安全管理不力也是事故上升的主要原因之一。

The reason of RH-KTB system performance declining is analyzed. Not only owing to entry temperature, pressure, flux of water vapor and condenser's bad effect, extraction ability of vacuum pump declines but also there are leaks in vacuum system result in system performance declining.

对系统性能下降的原因进行了分析，水蒸汽的人口温度、压力、流量的变动及冷凝器的冷凝效果不佳而导致的真空泵抽气能力下降以及系统泄漏是导致系统性能下降的主要原因。

This paper discusses the causes to form subsurface transversal crack in silicon aluminum killed steel slab with straight mold type caster.

论述了直弧型板坯连铸机生产硅铝镇静钢时产生皮下横裂纹的机理及原因，并找出了产生皮下横裂纹的主要原因，w高及铌增加了铸坯的裂纹敏感性。

Atticus: For a number of reasons. The main one is that if I didn't, I couldn't hold my head up in town.

原因有很多，主要原因是如果我不这样做，我在镇子里就会抬不起头。

A detailed research on cause of deficiency odor during self-life of canned milk is given,which though a lot of experiments including anlysis of raw material,content,packing can ect,and conclude that iron and stannum dissolved from packing can are main reason that bring the deficiency odor .

对罐装牛奶保藏期中产生缺陷风味的原因进行了详细的研究与分析，通过对原料、内容物的检测结果、包装材料对照试验等多方面的分析，确认包装材料中溶出的铁离子和锡离子是引起内容物产生异味的主要原因。

Responses to the selection pressures incurred by the novel abiotic and biotic factors in introduced ranges are primary causes for alien species evolution, although other factors such as intra- and inter-specific hybridizations, genetic shifts can also cause evolution.

种内或种间杂交、遗传漂变、新环境带来的新的选择压力等是促使外来种发生进化的重要原因。在入侵地，响应来自非生物和生物因素的选择压力是外来种发生适应进化的主要原因。

Then,a test data shows that the material with over\|weak performance on strain hardening is not fit to plastic design,either.

采用塑性法进行设计的主要原因之一是可以避免繁琐的计算，原因之二是弹性设计过于保守[2 ] 。

RESULTS: The social problems caused by Internet are attributed to complex psychological factors, mainly including compensation, conformism and imitation, pathetic and sexual need, inferiority, amusement and gambling, curiosity, and catharsis. Psychological needs, especially those that are not satisfied in real life, are chiefly responsible for the social problems caused by the Internet among University students.

结果：引发大学生网络社会问题的心理因素是复杂多样的并因人而异，补偿心理、从众模仿心理、情感和性需求心理、自卑心理、娱乐和赌博心理、猎奇心理、泄愤心理等是其主要原因，而心理的需要尤其是那些在现实生活中无法获得满足的需要，是大学生产生网络社会问题的一个重要心理原因。

Mr de Soto argues that bureaucracy and the lack of formal property rights are major causes of poverty in developing countries.

获奖原因——促进了财产权与经济发展。de Soto说官僚主义与正当所有权的缺乏是导致发展中国家贫困的主要原因。

She was lost in 1921 apparently when a structural failure jammed her controls and sent her crashing into power lines near her base near Hampton Roads Va. Filled with hydrogen; she exploded in flames, killing thirty-four crew. The disaster was a major reason for the movement from hydrogen to helium in American airships..

一旦蒙皮里充满压力气体（H2）的时候，升降气囊就会使他像软式飞艇那样浮起来。1921年，他在弗吉尼亚州的汉普顿路附近坠毁，原因很清楚，一处结构损坏，卡住了他的控制器，使他一头撞上了基地附近的电线，造成泄露的氢气爆炸，致使34名机组人员死亡，这场灾难是导致美国飞艇转用氦气的主要原因。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。