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Allosteric enzymes possess an allosteric site in addition to their ACTIVE SITE.

别构酶控制着别构部位和它的活性部位。

In addition,allosteric enzymes may be controlled by effector molecules that bind to a site other than the active site and alter the rate of enzyme activity.

此外，变构酶可被效应分子所控制，它结合的部位并不是活性部位，却改变酶的活性。

On the one hand,PH_x(x=2,1) can insert into the Si-Si backbond at elevated temperature,and a surface Si=P or a subsurface Si_3P unit was formed via subsequent H_2 liberations.On the other hand,the PH_2 species adsorbed on the Si_r site may completely dissociate across the other two unsaturated adatoms,and P adsorbed on the Si_r site may desorb in P_2 gas form at high temperature.

一方面，在高温下PH_x(x=2，1)可插入Si-Sibackbond，继而经过脱H_2步骤形成表面Si=P单元或次表面Si_3P单元；另一方面，吸附在Si_r位上的PH_2也可能在相邻的另两个Si adatom上实现后两个P-H键的解离，在高温下，吸附在Si_r位上的P可能以P_2的形式脱附。

For example, a cable network company can devote a Web site to the high-profile boxing matches it broadcasts and use load balancers to handle the crush of site hits during the fights.

例如，有线电视网公司可以将一个Web网站专用于转播受到高度关注的拳击赛，利用负荷平衡器处理比赛期间对该网站大量点击造成的拥挤。

The first two sites(the North Beichuan City site and the Shilinzi Village site)are several kilometers away from each,displaying a pattern of deformation in bedrocks and a pattern of deformation at the transition from bedrock to unconsolidated cover.

前两个地点，在北川县城以北几公里，反映了近地表基岩中的一种变形和从基岩向松散堆积物过渡区的一种变形模式。

The Chandlers' house at 194 Union Street no longer stands, and the site is occupied by part of the Union House office complex; immediately opposite the site of the fire is the present-day headquarters of the London Fire Brigade.

194联合大街上钱德勒一家的房子已经不复存在，成为了联合办公大楼的一部分，正对火灾现场的一侧现在已成为伦敦消防局总部。

Results The length change of the long axis was smaller than the absolute value of the length change of the short axis in the coup site air bubble; the length change of the long axis was bigger than the absolute value of the length change of the short axis in the contrecoup site air bubble.

结果 撞击点处的气泡在短轴方向上的轴长变化大于长轴方向上的轴长变化，对冲点处的气泡在短轴方向上的轴长变化小于长轴方向上的轴长变化。

Results The main injury characteristics of HDI were as follows: scalp contusion,cranial fracture,epidural hematoma,subdural hematoma and cerebral contusion at impact position;subdural hematoma,basal fracture and cerebral contusion at contrecoup site;skull fracture mainly at impact position,subdural hematoma mainly at contrecoup site,subarachnoid hemorrhage mainly at the base of brain and cerebral contusion regions;severe contrecoup injury at frontal and temporal lobe.

结果 颅脑减速伤损伤的主要特点为：撞击部位头皮损伤、颅盖骨折、硬膜外血肿、硬膜下血肿和脑挫裂伤，对冲部位硬膜下血肿、颅底骨折和脑挫裂伤；颅骨骨折以撞击部位多见，硬膜下血肿以对冲部位多见，蛛网膜下腔出血主要位于脑底部及脑挫裂伤区；额、颞叶严重对冲伤是常见颅脑减速伤的重要特征。

Links can help our crawlers find your site, and improve your site in our search results in the display rate.

链接可帮助我们的抓取工具找到您的网站，并提高您的网站在我们的搜索结果中的展示率。

This paper introduced the planning principle and design idea of comput er aided web site planning decision-making support system which based on the G I S (Geographical Information System), and brought forward the technical solution of web site planning based on the principle of the balance of the supply and deman d.

介绍了基于GIS的计算机辅助网点规划决策支持系统的规划原则和设计思路，提出了基于供需平衡原则的网点规划技术方案。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。