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Streptococcal pyrogenic exotoxin B is a cysteine protease and carried by every strain of Streptococcus pyogenes. SPE B has been shown to play an important role in invasive group A streptococcal infection.

链球菌致热性外毒素B 是一种cysteine protease，所有A群链球菌都携带致热性外毒素B之基因，在A群链球菌侵入性感染的病程中，致热性外毒素B扮演一个重要的致病角色。

But 3H-TdR incorporation of HPMC cultured in the medium with high concentration glucose and EGF was increased significantly(P＜0.05)than in the medium with high concentration glucose and VitA. Conclusion EGF and Vit A do not effect the differentiation of HPMC,but can ameliorate the inhibitive effect on proliferation of HPMC by high concentration glucose.It may play an important role in the repair of damaged mesothelium and restoration of its function.

EGF和Vit A对腹膜间皮细胞的分化未显示出明显作用，但两者均可刺激细胞的增殖，特别是EGF可改善高浓度葡萄糖对腹膜间皮细胞的增殖抑制作用，这对CAPD患者损伤腹膜的再生修复以及促进其功能恢复可能有重要意义。

Odd and even function's integral calculation is a kind of particular operation in integral calculus ,if the character of odd and even function can be applied flexibly in the process of calculating,it will play a role of simplifying calculation.

奇偶函数的积分计算是积分学中的一种特殊运算，在计算过程中如能巧用奇偶函数的性质，往往可以起到化难为易、简化计算的作用。

There are some people who, contented with a single skill or a peep-hole view, never make any progress; they may play some role in the revolution at a given place and time, but not a significant one.

有一种人，抱着一技之长和一孔之见，再也没有进步，这对革命虽则在一地一时有些作用，但是没有大的作用。

Wearing the graduation gown, in an instant, do we realize that the stentorian slogans at military training on grade 10 still reverberate around; the pleasure and harvest brought by ally tour are being treasured deeply in our hearts; the enthusiasm and perseverance we had represented during the series activities of supporting Beijing Olympic Bidding are thrilling us as ever; the delight and success of creating poem anthology are haunting in our minds as before; the sweet and bitter of acting a role in the play for the first time still hovering in our brains; the attachments derived from the Canada National Day are accompanying us till present; the fresh experience stemmed from participating in the volunteers' activities of the Special Olympics had inscribed in our memory; the melodies of the 4th, the 5th, and the 6th anniversary performances are still echoing in our ears…the transitory 3 years of high school had left us so much remarkable reminiscences, so many impressive experiences that worth cherishing.

穿上毕业服，才发现高一军训时嘹亮的口号似乎还回荡在耳边；胡同游带来的那份愉悦与收获还徜徉在心底；申奥助威活动的那份热情与执著仍旧激荡着我们的全身；高二创作诗歌集带来的那份喜悦感与成就感依然充斥着我们的脑海；第一次演话剧的酸甜苦辣依旧那么清晰的回映在脑畔；加拿大国庆日的欣喜之情仍旧跟随着我们；高三特奥会志愿者活动的特殊经历始终铭刻在心头；四周年、五周年与六周年的校庆文艺演出的歌声仿佛还在余音缭绕……高中短短的三年，留给我们太多美好的记忆，太多难忘的经历。

Some evidence indicates that the combination of extrinsic, intrinsic and genetic factors all play a role to cause the disc degeneration, with a progressive decrease in proteoglycan content leading to dehydration of the nucleus pulposus, and Type Ⅰ collagen begins to appear in the matrix, the ratio between Type Ⅰ and Type Ⅱ increases. All these cause the swelling pressure, disc height and the disc load bearing ability decrease. The disc progressively herniate and cause radiculopathy and myelopathy.

内因、外因及遗传方面的诸多因素导致椎间盘逐步退变后，其实质就是基质中蛋白多糖的减少，含水量降低，Ⅰ型胶原出现在基质中，Ⅰ、Ⅱ型胶原的比例明显上升，髓核呈纤维样改变，导致椎间盘的膨胀压降低，承重能力下降，椎间高度降低，椎间盘承受的重力不能平均地向各方向传递，致使纤维环疲劳、破裂、髓核突出，造成脊髓或马尾神经受压，引起严重后果。

This circuit can change the gain in a wink and obtain high precision with vast scale. This circuit can play important role in signal processing before A/D.

该电路能够在瞬时调整信号的放大增益，具有很高的精度和较大的动态范围，能够在模数转换前端处理中发挥重要作用。

It used the help of a Swedish production of gold, Germany advanced forging process, selected high toughness and hardness of the high-alloy materials, the bionic magnetized, low-temperature gold-plated, antimicrobial technology, such as the United States to import equipment plastic micro-needle, the application of advanced beauty High technology and breakthroughs in genetic engineering of the characteristics of active ingredients, use of plastic micro-needle the United States, used "to the point of" infiltration of AMD technology, multi-point, uniform, comprehensive, in-depth the high-energy original fluid, directly transported to the Skin, containing a variety of nutrition and active components of high-energy original fluid, rapidly absorbed by the skin organizations, play a role, resulting in effect, promoting skin metabolism, and maintain skin elasticity and Jiaomei.

它借助一只采用瑞典生产纯金、德国先进的锻造工艺，精选高韧度、高硬度的合金材料，经过仿生磁化、低温镀金、抗菌等工艺的导入仪器美塑微针，应用先进美容高新科技，突破生物基因工程活性成份的特点，利用微针，采用&点到面&超微渗透技术，多点、均匀、全面、深入的把高能量原生液，直接输送到所需的皮肤组织，让含有多种营养及活性成分的高能量原生液，迅速被肌肤组织吸收，发挥作用，从而产生疗效，促进皮肤新陈代谢，保持皮肤弹性和姣美。

A detailed analysis of the experimental results implied that the attractive forces play a main role in the collisional quenching processes of NCO by the quenchers studied in this work, and for some quenchers, the quenching of NCO is probably controlled by the entrance-channel and might be ascribed to the contribution of chemical reactions.

对实验结果的分析表明，电子激发态NCO A〓Σ〓（00〓0）的猝灭过程可能属于多极吸引势起着重要作用的入口通道控制机制，对于大多数被研究的猝灭剂分子，化学反应在其对NCO自由基的猝灭过程中可能起着重要的作用。

When Carp vehicle fuel economy stick to the running car engine cooling system of water tanks (also called the "expansion of the pot"), after the car in a moving process, the engine heat and heat transfer to the cooling liquid, heating and cooling liquid Carp Festival Oil rods in the "Bioglass" play a role and have a lot of negative ions, with a lot of negative ion engine coolant along the cylinder piston and the cylinder head outer space waterways cycle, formed around the cylinder piston engine of the electromagnetic field.

当卡普汽车节油棒投放到汽车发动机冷却系统副水箱里后，汽车在行驶过程中，发动机发热并将热量传递给冷却液，受热的冷却液与卡普节油棒中的&Bioglass&发生作用并产生大量的负离子，充满大量负离子的冷却液沿着发动机活塞缸体和缸盖外壁的水道空间循环，形成环绕发动机活塞缸的电磁场。，发动机活塞缸中的混合燃料气体在这种电磁场作用下，形成阿萨卡瓦效应，燃烧增强、爆发力增大、燃烧效率提高，从而降低汽车燃料消耗、提高发动机动力、显著减少尾气排放。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。