减弱

BACKGROUND: Perfluorocarbon emulsions are artificial oxygen carriers that have been shown to attenuate the effects of air embolism.

背景：全氟碳乳剂是一种人工氧载体，被证明可以减弱空气栓塞的效应。

Medication that prevents the formation of gas in the alimentary tract or ''.

用来预防消化道气体的形成或减弱气体的通过的药物。

However, if one alkylation center is blocked, the carcinogenic potency of the compounds is decreased obviously.

但如果有一个烷化中心丧失活性，就会明显减弱化合物的致癌活性。

There is a significant linear correlation between stratum intermedium cell and ameloblast in apoptosis and expression of PCNA and TNSALP.

中间层细胞先于成釉细胞表达TNSALP，出生后5d时即呈现强阳性染色，而后其表达又逐步减弱；成釉细胞7d时开始出现阳性，且呈逐渐增强趋势。

Results: The expression of both mRNA and protein of c-myc were obvious in the bud and cap stages,while decreased in the bell stage, then increased in ameloblast and dentinoblast when dentin formation. The expressions of c-myc were stronger in mesenchymal cells than in epithelial cells. The expression and distribution of c-myc mRNA is consistent with that of c-myc protein.

结果：c-myc mRNA及蛋白的表达在蕾状和帽状期明显，钟状期减弱，而牙体组织形成期成釉细胞、成牙本质细胞及间充质牙乳头细胞表达又增强。c-myc蛋白表达和分布与c-myc mRNA转录基本一致。

The results showed that methamidophos inhibited the growth and activity of bacteria, Actinomyces and Azotobacter at different degree, but stimulated the growth of fungi; the results also showed that soil respiration and ammonification was stimulated, however, soil nitrogen fixation, nitrification and Fe－reduction was inhibited.

结果表明，甲胺磷对细菌、放线菌和固氮菌群的生长具有不同程度的抑制作用，而对真菌却有一定的刺激效应；土壤的呼吸作用、氨化作用增强，自生固氮能力、硝化作用以及铁离子价数转换作用减弱。

Unfortunately, an opposition to your Moon diminishes Jupiter's optimism.

但是，不走运的是，木星与月亮的对冲相位减弱了木星的乐观精神。

Chapter 3 is the keystone, in which the challenges against the issues of global ecology and environment and the Regime Effects, namely, the ever-establishment of related collection of policies, regulations and laws, have been analyzed. It is involved with the alleviation of anarchical nature of international relations, reinforcement of authority on issues of environment by the international organizations, e.g. UN, the restrictions on governments in which governments take the environment into consideration and the intensification of the international conventions of protecting the environment.

第三章是本文的核心，进一步分析了全球生态环境挑战及其"制度效应"(即不断设立解决相关问题的各种制度、规范和法律)：国家间关系中存在的"无政府现象"的减弱，联合国等国际组织和各种环境非政府组织在环境问题上的权威增加，国家受到越来越多条约的约束并且自觉接受生态约束，环境保护的国际习惯也在不断增加。

Different coupling methods and anchor strength of the detecting rod have different interferences on signal reception.

首次采用了单道信号分析的方法，对比分析了接收探杆的不同耦合方式和锚固强度对信号接收的干扰特点，并研究了减弱或消除干扰的接收探杆耦合方法。

The static model of torsion joint is based on that of bending joint. The effects of structure parameters inside air pressure, initial angle, rube average radius, rube shell thickness on the turning angle are analyzed and the following conclusions are drawn: the relationship between the angle of torsion joint and the inside air pressure is basically linear, the angle of torsion joint increases with the initial angle and rube average radius, the angle of torsion joint decreases while the rube shell thickness increases. The kinetic equation is built for torsion joint. Simulating experiment implies that the time of inflating and deflating process is extremely shorter than that of kinetic process. So the pneumatic process can be ignored in actual system design and control. The factors that affect the dynamic features of torsion joint, such as shell thickness of rubber tube, average radius, initial angle, connector's outlet area, moment of inertia and viscous damping coefficient, are analyzed and the following conclusions are drawn: the change of rube shell thickness has no effects on the dynamic process of FPA inside air pressure while greatly affects the turning angle of torsion joint; when the rube shell thickness is small, the torsion joint has a bigger turning angle, no overshoot and long risetime, when the shell thickness is big, the turning angle of torsion joint is small, but has high response speed, overshoot and low shock; when the rube average radius increases, the turning angle of torsion joint increases and the overshoot increases too; when the initial angle of torsion joint is big, the turning joint is big, the overshoot is small and shock is low, but the risetime is big; the connector's outlet area affects the dynamic process of FPA inside air pressure greatly, but has no effects on the dynamic process of turning angle; moment of inertia and viscous damping coefficient have no effects on the dynamic process of FPA inside air pressure, but affect the dynamic process of turning angle greatly.

在弯曲关节模型推导的基础上，建立扭转关节的静态模型，并分析了扭转关节内腔压力，初始转角，橡胶管平均半径，橡胶管壁厚等参数对关节转角的影响，得出扭转关节的转动角度与充入FPA内腔的压缩气体压力之间基本呈线性关系，扭转关节的转角随初始角度和橡胶管平均半径的增大而增大，扭转关节的转角随橡胶管壁厚的增大而减小的结论；建立了扭转关节的动力学方程，仿真实验表明FPA的充放气过程与扭转关节的动力学过程相比时间极短，在实际系统设计和控制过程中可以忽略不计；分析讨论橡胶管壁厚，平均半径，初始角度，气体节流口面积，转动惯量，粘性阻尼系数等因素对扭转关节动态特性的影响，得出橡胶管初始壁厚的变化对扭转关节FPA内腔压力的动态响应几乎没有影响而对关节转角的响应曲线影响比较明显，壁厚较小时，关节可以得到较大的转角，并且转角的响应曲线没有超调，但上升时间长，壁厚较大时，关节转角变小，响应加快，但是有超调和轻微振荡现象，橡胶管平均半径越大，得到的关节转角越大，但是转角响应的超调量也随之增大，FPA的初始角度越大，关节的转角越大，并且超调量减小，振荡减弱，但是上升时间增大，管接头出口面积的大小对关节FPA内腔压力的建立过程影响较大，但对关节转角的动态响应几乎没有影响，转动惯量和粘性阻尼系数对FPA内腔压力的动态过程几乎没有影响而对扭转关节转角有较大影响等结论。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。