查询词典 constant angular acceleration

The measurement results show that the intensity increases rapidly with discharge voltage at a lower voltage range, but the speed slows at the higher voltage range, for constant gas pressure of 130 Pa; and the intensity increases backwardly with gas pressure at constant discharge voltage of 6.4 kV.

实验数据显示，保持气体压强p=130 Pa不变，在电压较低时，光谱强度随电压增长较快，在电压较高时，光谱强度增长较慢；保持放电电压U=6.4 kV不变，光谱强度随气压增长逐渐变小。

The effective stimulating sites were indentified by defensive cardiovascular response and other components of defence reaction evoked by 3 s trains of rectangular cathodal pulses (100Hz, 0.5ms pulse duration, 70 -150μA intensity for dPAG and 150-250μA for PF) delivered from a programmed multichannel constant current stimulator. The responses included an increase in blood pressure and heart rate, pupillodilation and an increase in the rate and depth of respiration. Currents of 1Hz, intensity of 100- 150μA for dPAG and 200-250μA for PF were used to observe the effect of the stimulation of them on RVLM neurones. The deep peroneal nerve and superfacial deep peroneal nerve were carefully separated, and put on a pair of stimulating electrode respectively, Both nerves were stimulated with constant rectangular pulses of 1Hz, 0.5ms duration and 300μA current intensity to see their effects on RVLM neurones. The baro-and chemo-receptors were activated by the intravenous injection of phenylephrine or 0.208 M NaH2PO4. The degree of convergent inputs to individual RVLM neurone was studied by the stimulation of the sites mentioned above. It was found that neurones about 61.4%(27/44) and 35.3%(6/17) received convergent inputs from three and four places respectively.

过去的研究主要集中于整体水平，利用电刺激或化学刺激RVLM神经元，观察对血压、心率及交感活动的影响，并对影响心血管交感活动的神经递质进行了广泛探讨，积累了大量资料；在神经元水平，主要研究刺激脑内核团、外周神经、化学感受器及压力感受器等对RVLM神经元放电的影响和某些神经递质影响神经元活动的机制、然而，对RVLM神经元如何整合不同信息、其可能突触机制等研究得较少，本互作拟采用在体细胞内、细胞外记录电活动与微电泳，结合中枢核团及外周神经电刺激等方法，对RVLM神经元在不同状态下的整合作用规律与可能机制进行初步探讨，为进一步了解这一复杂的整合过程提供新的理论依据。

The two rate equations fitted the experimental data well,as was confirmed by the reaction of bis(4-carboxyphenyl)phenyl phosphine oxide with ethylene glycol under constant reaction temperatures of 180197℃ and at different ratios of diol to diacid,whose rate constant and activation energy were calculated.

将这两个速率方程应用于双苯基氧化膦与乙二醇的恒温自催化聚酯化反应，计算值与实验数据相一致，并计算得到了该反应的速率常数和活化能。

On one hand, it comes from "romantic"own ambiguity, signifies the constant transmutation of the meaning and ideaistic point in the process of modernity; on the other hand even more, it comes from our constant changes of disquisitive view and researchful criterion.

&浪漫&是一个意义不断衍生的词语，一方面源于&浪漫&本身的歧义性，表征为在现代性的进程中，自身意义与精神指向的不断嬗变；另一方面更源于我们对&浪漫&研究的视角与范式的不断变新。

Through defining the concept of transition process time constant for a continuous autonomous dissipative chaotic system, the relationship between transient characteristics of these chaotic systems and corresponding dissipativity is explained theoretically, and then an explicit formula for calculating the transition process time constant is established.

通过确立连续自治耗散混沌系统过渡过程时间常数的概念，从理论上阐明了这类混沌系统的瞬态特性与其相应的耗散度之间的关系，从而建立了计算过渡过程时间常数的显示关系式。

So we adopted the isotope marking method in order to know the distribution of BBP in male and female mice. The result indicated 〓H-BBP presented the first-order kinetics and matched the open two-compartment model. Distributional half-life was about 20 minutes and eliminable half-life was about 6-7 hours. As α(the speed constant of distributional phase) was about ten times β(the speed constant of eliminable phase), this compound had a fast distribution and a low elimination.

为了揭示BBP致毒有明显性别差异的原因，采用同位素标记方法示踪BBP在雄、雌动物体内的归趋，结果表明：BBP在动物体内呈一级动力学线性过程，符合二室开放模型，分布半衰期为20min左右，消除半衰期为6-7hr左右，分布相的速度常数α是消除相的速度常数β的10倍左右，说明该化合物在体内的分布较快、消除慢的特征。

The digital high power system based on constant RMS, can adapt to various constant voltage or current application. One application is installed in the air exhauster to control the process of producing the tube of energy-saving lamp.

中文摘要：基于有效值恒定的大功率数字电源系统，具有非常广泛的应用范围，可以适用于各种需要有效值恒定的恒压和恒流电源的场合，如应用在生产节能灯管的排气机——长排车上，用于控制节能灯管的排气过程。

In order to verify the model mentioed above, the mathematical simulation of geotemperature field has been carried out. The thrust nappe sheat zones are handled with two ways: 1 they are treated as constant heat sources in terms of q=τμ, that is, the quantity of frictionally generated heat is constant; 2 as heat conduit with high thermal conductivities and with fluid flow in fault zones.

为了进一步检验上述逆冲推覆复合叠加构造模型的可信程度，开展了地温场数值模拟工作，按复合叠加型岩石圈热结构给定各种热物性参数，逆冲推覆剪切带以两种方式处理，一是把它作为定热源按q＝τU，即按摩擦生热量级大小取值；第2种是把它作为热通道处理。

It is a organic hexahydric weak acid. In different acidity, the dissociation degree and the color of reagent solvent were different also. Determined and draw the absorption curve of reagent in varies acidity, and figured out the dissociation constant by Perisic-Janjic method; the complex ratio of the reagent and bismuth was determinated by mole ratio method and continuous variation method; The apparent stability constant of the complex was calculated, the mechanism of dissociation and coordination were discussed.

2，6—二溴4—硝基偶氮氟胂是本实验室合成的测定铋的一个较好的试剂，对其进行了进一步的研究，在用柱层析法对其进行了提纯后，测定了试剂在不同酸华东师范大学硕：l：学位论文摘要度下的吸光度和最大吸收波长，绘制了其吸收曲线，用Perisic一Janjic法计算了试剂的六级离解常数；用摩尔比法和连续变化法测定了试剂与秘形成的配合物的络合比：计算了配合物的表观稳定常数，研究了其离解和配合机理，为筛选高效有机显色剂提供了理论依据。

MethodsUnder the conditions of constant temperature, constant humidity, auto-light and electromagnetic shielding, we gave experimental rats suanzaoren decoction at different doses and adopted chronicity electrode embedment technology to trace the EEG of hypodermal layer of freerunning rats , which rececived electric stimulation.

方法在恒温、恒湿、自动光控及电磁屏蔽条件下，给予实验动物不同剂量酸枣仁汤，采用慢性电极埋植技术描记电刺激所致失眠大鼠自由活动情况下的皮层脑电图。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。