查询词典 constant angular acceleration

The corrosion rates of iron in 0.5～2N sulfamic acid of 25～70℃ are investigated by the conventional gravimetric method and by chemical analysis, Based on the experimental data,the several kinetic parameters of iron in sulfamic acid have been calculated,such as rate constant,activation energy,frequency factorand another constant,with the empericat equation put forward by Mathur.

本工作用腐蚀失重和化学分析方法研究了铁在0.5～2N 氨基磺酸溶液中，在25～70℃条件下的腐蚀速率。根据这些腐蚀速率数据，利用 Mathur 提出的经验公式计算出铁在氨基磺酸溶液中腐蚀反应的动力学参数 K、B、E和 A。

The relationships among stress, strain, resistance and temperature of NiTi memory-wire and superelastic wire, which are in constant temperature, constant stress and shape recovery, were measured and analyzed. The actuating property of Cu-based spring in three basic conditions was investigated.

对NiTi记忆丝及超弹性丝在恒温拉伸卸载、恒载变温以及形状回复过程中的应力-应变-电阻-温度之间的关系进行了系统的测试和分析；对Cu基螺旋弹簧在三种基本使用状态下的驱动特性进行了研究。

In order to resolve the problem of unconvenient to test and having high error rate during the time constant testing,a new test system of time constant for thermal detector is designed in this article.

为了解决目前热敏探测器时间常数测试中存在的测试不方便，测量误差大的问题，设计了一种新型的热敏探测器时间常数测试系统。

Regarding the density data and acoustic data in logging material as restriction, it also establishes undrilled district log through model seismic inverse, then, calculates elastic constant of rocks, density constant of rocks and even the profile of the following three pressures (pore pressure, caving pressure, fracture pressure). In the end, this thesis can determine safe drilling mud density windows, provide reference for drilling design, guides safe drilling and decreases the occurrence of accident.

将测井资料中的密度数据或是声波数据作为约束条件，通过模型地震反演，构建待钻区域的测井曲线，从而可以用理论和处理手段上比较成熟的测井分析的方法，进行岩石弹性和强度参数的计算，计算地层的三个压力(孔隙压力、坍塌压力、破裂压力)剖面，最终确定安全钻井液密度窗口，为钻井设计提供参考，指导安全钻井，减少钻井事故。

Rna - Rns, see "Partitioning of net radiation", for multiple plants the fraction of radiation to each plant is calculated in the radiation section, see "Partitioning of radiation between plants", es is the vapour pressure at saturation, ea is the actual vapour pressure,ρa is air density, cp is the specific heat of air at constant pressure, Lν is the latent heat of vaporisation,Δ is the slope of saturated vapour pressure versus temperature curve,γ is the psychrometer "constant", rs is an "effective" surface resistance and ra is the aerodynamic resistance.

潜在蒸腾量 Etp 根据Monteith(1965)给出的彭曼联合方程形式计算：式中： Rn 为对于蒸腾的有效净辐射量(也就是 Rna - Rns ，见&净辐射划分&-Partitioning of net radiation，对于多重植被，每一株植物的辐射比率的计算见辐射一节的&植物间的辐射划分&Partitioning of radiation between plants)； es 为饱和水气压；ea 为实际水气压；ρa 为空气密度； cp 为常压下的空气比热；Lν为汽化潜热；Δ为与温度曲线饱和水气压关系曲线斜率；γ为干湿球湿度计&常数&；rs 为&有效&表面阻力；ra 为气动阻力。

It indicated that the multiple-layered films were mainly composed by C-F, C=C and Si-O bonging, a little Si-C and Si-F bonding were also existed because of history effect. The bondgap were calculated as 2.7eV. The dielectric constant of the multiple-layered films was close relative to the thickness of the covering layer-SiOx, so the thickness had better be reduce. The bonding configurations of multiple-layered films had no evident changes after 400癈 annealing, the thickness raise very little and the dielectric constant increase 8%. Compared with one-layered a-C:F films prepared in the same conditions, the SiOx/a-C:F/SiOx multiple-layered films had a better thermal stability.

结果表明，多层膜主要由C-F，C=C，Si-O键构成，由于器壁的历史效应，薄膜中还存在少量Si-C和Si-F键；多层膜的光学带隙经计算约为2.7eV；多层膜的介电常数与包层SiO_x厚度有很大关系，应尽可能减小SiO_x厚度；在经历200-400℃的N_2氛围中退火后，多层膜的红外结构没有发生太大的变化：膜厚度稍微增大，介电常数只增加了8％，与同样制备条件下沉积的单层a-C：F薄膜相比具有较好的热稳定性。

ClassИ Biohazerd Satety Cabinet bought from ESCO; Centrifuge 7GL-16B bought from Shanghai anting Scientific instruments corp. Portable pressure steam disinfecting apparatus YX-280 brought from Jiangyin Binjiang medical treatment facility; electrothemal constant temperature incubator 9052 bought from Shanghai Jinghong test rig ltd; double-deck atm constant temperature altemator HZQ-C bought from Haerbin Eastunion electron tech ltd. Extended linear conversational programming system bought from Thermo; Pipetting gun brought from Eppendorf.

洁净工作台 ClassИ Biohazerd Satety Cabinet 购自 ESCO ；离心机 7GL-16B 购自上海安亭科学仪器厂；手提式压力蒸汽消毒器 YX-280购自江阴滨江医疗设备厂；电热恒温培养箱9052购自上海精宏实验设备有限公司；双层空气恒温振荡器 HZQ-C 购自哈尔滨东联电子技术开发有限公司；酶标仪购自 Thermo ；移液枪购自 Eppendorf 。

Study the first phase of this experiment by kinetic method, it shows this reaction isfirst-degree reaction. At 32℃,34℃,36℃and 38℃, each constant of reaction rate is 0.0042,0.0052, 0.0098 and 0.0146, and the constant of dynamics is pyramided by the hoist oftemperature.

第一阶段化学反应为一级反应，在32℃、34℃、36℃和38℃的化学反应速度常数分别为0.0042、0.0052、0.0098、0.0146，随着温度的升高，化学动力学常数逐渐增大。

We would play in the ha y, the constant tweeting of the hatchlings — a constant background symphony .

我们会在干草中嬉戏，孵出的小鸟不停地鸣叫，这是不间断的背景交响乐。

We would play in the hay, the constant tweeting of the hatchlings—a constant background symphony.

我们会在干草中嬉戏，孵出的小鸟不停地鸣叫，这是不间断的背景交响乐。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。