试验

The experiments on 11 crops cultivation, including wheat, rapes, sweet potato sesames, leeks and so on, were carried out in Jingzhou as selenium resources from selenium mineral powders, complex fertilization of containing abundant selenium and Na2SeO3 in high selenium area.

以源自高硒区的硒矿粉、富硒复混肥和Na_2SeO_3为硒源对小麦、油菜、红薯、芝麻、韭菜等十一种作物在荆州进行了异地富硒栽培试验和提高硒矿粉利用率的试验，得出如下结论： 1。应用硒矿粉、富硒复混肥和Na_2SeO_3作为硒源均能提高试验作物的硒含量水平，以土壤施入和叶面喷施的方式均能升高作物的含硒量，可以作为富硒栽培的一个重要措施。

At first, the wind tunnel test and test data process of this study are introduced in detail. A method to calculate expected extreme values of time series with a long time interval is then proposed with its sub-sections based on the classical Gumbel theory for extreme values and the independence of observed extreme values. At last, the extreme values of the wind pressure coefficients of the present wind tunnel test are calculated with the proposed method and methods used widely at present, such as peak factor method, improved peak factor method and Sadek-Simiu method.

首先 介绍了风洞试验及试验数据处理的基本概况；然后在阐述经典Gumbel极值理论的基础上，根据观察极值的相互独立性推导了短时距下极值分布参数和长时距下极值分布参数的关系式，给出了一种由短时距样本推算长时距下的极值估算方法；最后基于风洞试验数据，将常用极值估算方法(峰值因子法、改进峰值因子法和Sadek-Simiu法)和该方法的计算结果进行了比较。

The experiment includes two one-factor design, sand/soil ratio and peat content.

试验设为两个单因素试验，即沙/土配比和泥炭含量试验。

Objective:The purpose of the experiment was to study the carcinogenic and mutagenic effects of petroleum asphalt.

目的：研究石油沥青有无致突变和致癌作用。方法：选用大鼠经口急性毒性试验、Ames试验、小鼠经口微核试验、大鼠气管注入及兔经皮涂抹致癌试验，研究石油氧化及直馏沥青的急性毒性以及致癌和致突变作用。

Some primary metering grooves with different curvature radiuses and geometrical dimensions were designed,and the hydraulic characteristics of them were all tested Based on the experiment results, different flow characteristics of them were obtained The great differences between the experimental results and the conventional theoretical predictions were found by the comparison between them Under the condition of this experiment, the critical Reynolds is 1000～1200, and is diminished as the decrease of th...

为了在设计层板发汗冷却推力室时选择合适的一次调节通道，对不同曲率半径、不同几何尺寸的一次调节通道进行了流阻试验，得出了不同几何尺寸的一次调节通道的流动特性。试验结果与经典的层流理论计算结果之间存在较大的差异。试验表明，一次调节通道的临界雷诺数随曲率半径的减小而减小，摩阻系数随曲率半径的减小而增加，并得出了相应条件下的一次调节通道摩阻系数的修正关系式，在层流范围内能较好地反映一次调节通道的流阻特性

Site tests need a lot of time and money, the datum are not many, even few the test of pile with cap which we need to analyze the effects of cap.

而现场静载荷试验需要花费大量的时间和经费，已有试验资料较少，承台和桩一起试验的资料更少，难以分析承台对单桩水平承载力的影响程度。

Through the analysis of salt-affected soil and effect of dispersion after changing the content of salt-affected thing, we conclude that using the soil block test, pin pole test is effective for assessing the dispersion because of affecting by high sodium ion .

通过研究分析盐渍土及改变盐渍含量对分散性试验的影响，认为土块试验、针孔试验对受高钠离子影响的盐渍土分散性评价是较为有效的方法。

An experimental apparatus of two-dimensional fluidized bed (1300×890×10mm) made with plexiglass was established.

建立二维流化床（1300×890×10mm）试验装置，在此试验装置上进行了大量的试验工作。

The pollution accumulation results of post insulator and porcelain bushing in DC yard of converter station, natural contamination test station and wind tunnel were introduced. Artificial pollution tests were carried out on the post insulators with different sheds. The artificial rain flashover tests were also carried out on the bushings with different sheds profile. The shed configuration of insulator and porcelain housing such as sheds shape, core diameter, shed pitch were analyzed and compared.

分析了换流站、自然积污站和风洞试验中支柱绝缘子和直流设备套管的积污数据，对±500kV直流系统用不同伞形支柱绝缘子进行了全尺寸的人工污秽试验，进行了瓷套管人工淋雨试验，比较了伞形参数对支柱绝缘子和瓷套管污秽性能和淋雨闪络性能的影响。

6Unicellular periphyton has also shown good adaptability to sewages,with remarkable increases of Chla(58.2%)and biomass (54.0%).It was also observed that community compositions were successfully changed from original unicellular Bacillariophytes and chlorophytes dominated community to filamentous and unicellular Cyanobacteria dominated community.

6水质处理期间，颗粒态周丛藻类也表现出对污水环境很好的适应性，其Chla在整个试验期间增长了58.2%，生物量增长了54.0%，群落组成由试验初期的颗粒态硅藻、绿藻为主，转变为试验后期的以丝状和颗粒态蓝藻、绿藻为主的藻群，水绵、丝藻、纤维藻、颤藻等藻类大量出现。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。