查询词典 oftest

Based on the existence studies, by using document analyses, adopting scales, pathanalyses, factor analyses, experience verify, experiment verify, this study explores the testmental action process; the connotation, structure, function and developmental principle oftest mental quality; the possibility, actuality and efficiency of educational experiment.

本研究采用文献研究法、问卷调查法、路径分析法、因素分析法、经验实证法与实验验证法等研究方法，在借鉴国内外己有研究成果的基础上，从揭示中学生考试心理问题的发展现状出发，系统考察考试心理活动过程揭示考试心理素质的内涵、结构、功能及其发展规律；探讨运用心理素质教育实验解决其考试心理问题进而促进学生考试心理素质发展的可能性、现实性和有效性。

The index of flame retardant property,material,product structure and relevant method of test of the antiflaming flexible cable is established according to the standard of GB/T18301-2001《the Third Part of Burning Test of cables in the Condition of flame:Method of Buring Test of Bunchy Wires and Cables》.The Cable will emanate the bad gas in buring to causethe the second calamity,so the smoke capacity of the cable in burning should be tested according to the standard of IECl034-2(1991)《the Second Part of Method of Smoke Concentration Test ofCable 1n Burning:Procedure and Requirement ofTest》The Liberation of Gas 1n burning is tested according to the standard of IEC754-2(1991)《the Second Part of Test of Liberatlon of Burning Materlal from Cable:Method to Measure the ACidity with the Measured PH and Conductlvltv》.

对阻燃型软电缆所要求的阻燃性能指标，是根据GB/T18301-2001《电缆在火焰条件下的燃烧试验第3部分：成束电线或电缆的燃烧试验方法》标准的规定而确定其电缆的材料要求、产品结构和相应的试验方法；对于耐火性试验，并考虑到电缆在火焰中会散发有害气体，造成&二次灾害&，所以还规定了对电缆燃烧时发烟量进行试验，按IECl034-2(1991)《电缆在特定条件下燃烧的烟浓度试验方法第二部分试验步骤和要求》以及燃烧时析出气体按IEC754-2(1991)《取白电缆的村料燃烧时析山气体的试验第二部分用测量PH值和导电率来测量气体酸度的方法》进行试验。

A case ofapplication of CAN bus on the distributed automatic system ofsubstation is illustrated.To meet the need ofautomatic controlsystem ofsubstation,a network is necessity because ofthe distributed control units ofthe substation.To shortenthe developed period of the system,an interface bridge between the RS232 and CAN bus is made.The result oftest run shows thatthe requirements ofsystem can be satisfied by the project.

摘 要：对一个把CAN总线应用到分布式变电所自动化系统的例子进行了分析，对于分布式变电所自动化系统来说，通信网络的效率、安全性和实时性具有重要意义，在实际工作中，通过在现行测量、控制和保护单元外增加一个RS232和CAN总线之间的转换器，构成变电所自动化系统的现场总线网络，试运行情况表明：该方案完全能满足系统的要求。

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。