进行试验

Pot and field experiments were conducted to study the response to application rate of urea labeled with ~(15)N combined with compound nitrogen fertilizer synergists in the growth,yield,uptake and utilization rate of urea of maize,In pot experiment,the standard urea application rate is 120mg/perpot;in field experiment,the standard urea application rate is 157.5kg/hm~2. Maize with ~(15)N-lurea.

用15N-尿素进行盆栽和田间试验(盆栽试验尿素标准用量为120mg/盆，田间试验尿素标准用量为157.5kg/hm2)，研究了复合氮肥增效剂用量、尿素减量与复合氮肥增效剂配施对玉米生长、籽粒产量和氮素吸收利用的影响。

Methods: The hook test was performed by a single surgeon in a cohort of 45 patients undergoing surgical exploration of the distal biceps tendon. While the patient actively supinates with the elbow flexed 90°, an intact hook test permits the examiner to hook his or her index finger under the intact biceps tendon from the lateral side. With an abnormal hook test, indicating distal avulsion, there is no cord-like structure under which the examiner may hook a finger.

一名外科医生对一组45例远端二头肌腱外科手术探查的患者进行了牵引钩试验，当患者肘关节屈曲90度上肢主动旋后时完整的牵引钩试验检查者在完整的二头肌腱侧面可以钩住他或她的食指，而异常的牵引钩试验表明远端撕裂，那里没有索状的结构使检查者可以钩住他的手指。

A series of triaxial shear tests with controlled suction and net constant confining pressure and the tests with controlled water content and constant confining pressure were conducted to study the effects of deformation,strength and yield properties of unsaturated undisturbed loess Q2 with suctions or initial water contents.

共进行2种12个原状Q2黄土试样的三轴剪切试验，即控制吸力和净围压为常数的非饱和土三轴排水剪切试验与控制初始含水量和围压为常数的三轴剪切试验。

A two factorial trait was designed to study the effect of level of lactic acid bacteria on the quality of rice stalk silages, the experiment material was fresh rice stalk (dongnong 03-8)and lactic acid bacteria.

为探索乳酸菌添加水平对整株水稻秸青贮发酵品质的影响，本试验选用鲜稻秸(东农03-8)为青贮原料和乳酸菌制剂为试验材料，按2×4二因素试验设计，在鲜稻秸中添加乳酸菌进行青贮。

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。

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

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。

Test data collected by 90°are inlet nozzle test unit is instroduced ,according to international standard,Test data such as inlet and outlet pressure,fan pressure,efficiency and etc.are computed.

介绍了用90°弧形进口喷嘴试验装置采集试验数据，再根据国际标准对风机的进出口压力、通风机压力、效率等试验数据进行了计算。

Secondly, standard test of bonding interface tensile splitting strength and on-site simulated test of bonding interface pull-off strength were carried on after the roughness test study.

其次在粗糙度试验的基础上，对影响界面粘结质量的界面剂种类、粘结龄期、混凝土强度等级等几个主要因素进行组合，完成了粘结界面劈拉强度标准试验和钻芯拉拔现场模拟试验。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐