造成阻碍

The results show that the modificator Mg can cause thermodynamic undercooling , and it may absorb in the crystal faces of preferential growth of carbides, which can slow down carbides growing up on plate type and make them tend to be fine, isolated and passivated, and thus the impact toughness is improved greatly.

研究结果表明：在过共晶高铬白口铸铁结晶过程中，变质元素Mg不仅造成热力学过冷，而且Mg可能吸附于碳化物择优长大的晶面上，起到阻碍碳化物片状长大的作用，使碳化物趋于细小、孤立，且边部钝化，使冲击韧度显著提高。

In 2000, Nishida et al synthesized the PPDO whose molecular weight could reach 142,000 but the monomer conversion could only reach 79.4% by using stannous octoate as catalyst with co-initiator under conditions that T = 100oC, M/I = 4900, t = 20 h, in 2000, the enzymatic polymerization of PDO was carried out at 100oC for 15 hours using 5wt% immobilized lipase CA by Nishida et al.

这主要是因为PDO的结构相对稳定，开环聚合要比GA、LA、CL困难一些，而且用于PDO开环聚合的催化剂体系单一，主要集中在Ti， Zr， Sn， Ld， La， Yb， Hg等重金属，然而这些重金属作为副产物，不容易从PPDO中分离出来，阻碍了PPDO作为医用材料的应用，这也造成了PPDO的成本昂贵。

Also, there is a tendency for the voltage at a row-column intersection to "bleed" over into neighboring pixels, partly untwisting the liquid crystals and blocking some light from passing through the surrounding pixel area.

此外，行-列交点处的电压也容易泄露到相邻的像素点上，这会在一定程度上造成周围区域像素的液晶变得不透明，阻碍光线的通过。

The using of the rural-urban migrants in architectural enterprises is not normative, and there is not an effective management system for a long time, which produces a lot of problems, such as often aggrieving the rights of the rural-urban migrants, baffling the rapid development of architectural industry, affecting the building of the concordant society.

长期以来，建筑业使用农民工不规范，缺乏针对农民工的有效管理制度，造成侵害农民工权益事件屡屡发生，阻碍了建设行业快速发展，影响了和谐社会的构建。

During twenty years of reforming and open door policy practicing, people's living standard and GDP have greatly increased. Therefore it is urgent and necessary to attach importance to the environment protection. Otherwise, the polluted environment will severely influence our life qualities through terrible dirties and vanishing blue sky. To protect the beautiful environment is the core of our tenet: Protect our environment and spread flourish and happiness.

祖国改革开放20年来，国人生活水平大幅提升，GDP增长率独步亚洲，如果环保工作不能与经济成长同步，环境污染严重影响我们的生活品质，破坏生态平衡，造成大地反扑，蓝天不再，山河蒙尘，要推向小康社会必将产生重大阻碍，又如何对得起我们的子子孙孙，这就是长荣设厂宗旨之重——长乐环保、荣光大地。

Part of the reason is high unemployment, which discourages couples from having families.

造成这种现象的部分原因是高失业率阻碍了人们结婚生子。

During the process of reformation among the cities with rich resources, the issue of unemployment has gradually become a big problem for reformation. The high unemployment rate causes a large number of work forces to separate from the process of social production, which results in wastage of available labor, increasing instability in society, difficulties to achieve social justice and encumbering the social and economical development.

在我国资源型城市的转型过程中，失业问题逐渐成为困扰资源型城市成功转型重大难题，失业率高使大量劳动力脱离社会生产过程，造成社会资源的浪费，增加社会的不稳定因素，使社会公平难以实现，也阻碍了社会和经济的发展。

But the improving brings about the environmental pollution, and retards the sustainable development of environment.

但是，这种改善造成了环境污染，阻碍了人居环境的可持续发展。

In contrast to the lipoma, which causes pain and loss of blood supply by strangulating the bowel, fecoliths, a hardened fecal ball, can impede the normal flow of food through the intestines.

相比于会造成疼痛和勒束肠管导致血供不足的脂肪瘤，粪石——变硬的粪球——会阻碍食糜在肠道中的正常流动，还会导致疝气。

You realize the most important thing for the gear to do is just get out of your way. You then also realize that if you had spent all the time you wasted worrying about acquiring better gear woodshedding, making photos or catching more rides that you would have gotten where you wanted to be much sooner.

你体会到原来对於那些你所使用的器材来说最重要的事情就是不要造成你发挥技术时的阻碍，而如果你把这20年来所浪费在研究这些器材的时间，花在如何专心致力於该技术本身，那么你可能可以在更短的时间达到相同的成就。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。