参数曲线

Furthermore, the factors affecting cutting qualities and efficiency and The research result included: firstly, matching of the tractor"s moving velocity and the cutting velocity, the degree of tightness of the cutter chain, the height of stubble, the opening of the cutting protector and the interval between two adjoining blades, the matching of configuration parameters of blades are the main factors affecting the cutting quality and efficiency; secondly, the cutter"s dynamically cutting of the arundo donaxl includes three stages: touching, cutting-in and cutting-off; thirdly, the movement tracks of stalks of Arundo Donaxl, which are cutted off has been acquired.

试验研究得到以下结论：(1)机组前进速度与切割速度的匹配、链条的张紧度、割茬的高低、护刃器的开合度及相邻动切割刀片的间距以及刀片结构参数的匹配是影响芦竹切割质量和切割效率的主要因素；(2)切割器对芦竹的动态切割过程包括接触、切入和切断三个显著不同的阶段，各阶段存在不同的切割特征；(3)得出了切割过程中被切断作物茎秆的运动轨迹曲线。

The structure is novel,the technology is advanced,the structure is novelty,the operation is easy and flexible and maintenance is convenient all kinds of material's mechanical performance's arylate and the test of production's quality.It is used for scientific research department advanced school or technical secondary school and enterprise.

技术参数： 1、量程范围：5KN 力值精度：示值的±0.5%以内 3、试验速度：0.1mm/min--500mm/min 速度允许误差：示值的±1.0%以内 4、有效拉伸距离：900mm 5、位移测量精度：示值的±1.0%以内 6、变形测量精度：示值的±1.0%以内 7、采集速率：50次/S 8、打印功能：打印测试后的试验数据及曲线 9、电源电压：AC220V 50Hz 10、外型尺寸：550mm×450mm×1600mm 11、重量：75kg

In this paper, an electrical coordination device, first developed in China, is introduced.Two types of bivariant function generators are explained in detail

本文介绍了电气协联的构成、基本工作原理和特点；介绍了构成电气协联各环节的工作原理和参数选择方法；比较详细地介绍了两种双变量函数发生器的构成原理和实用电路；列举了有关的试验数据和曲线。

Results The degrees of freedom of parameter curves of,,σ,ν, and т from BCPE distribution for height, weight and BMI were selected according as the smallest AIC and GAIC (3), and the differences between percents of cases below the centile curves and the expected values were

结果 根据最小Akaike信息准测(Akaike Information Criterion， AIC)和广义AIC选择了身高、体重和BMI BCPE模型，σ，ν，т下参数的自由度，依据BCPE模型所估价的百分位数曲线下样本例数的百分数与理论期望值相差在0.01%-1.21%之间。

Cerium dioxide ultrafine powder is prepared by electrochemical method using composite coating of In-Ru-Ir as anode,cerous nitrate and ammonium nitrate as electrolyte.

以钛基钌-钇-铑涂层电极作为阳极，硝酸铈和硝酸铵作为电解液，电化学法制备二氧化铈超细粉体，用X射线衍射和透射电镜进行了表征，制备条件用正交实验设计进行优化；通过极化曲线，计算了电极过程动力学参数

To experiment on 66mm, 75mm returned flow hydrocyclone and 70mm uniflow hydrocyclone (cone-shaped, columniform) in water-sand intermixture, then each capacity, separation performance and correlative parameter's change rules are obtained and compared. Building up overflow system in series of 66mm and 75mm hydrocyclone, separating property and partition curve of the system through experiment are gained.

分别对66mm、75mm返流式水力旋流器和70mm直流式水力旋流器四种水力旋流器进行砂水实验研究，得出各自的生产能力、分离性能及相关参数的变化规律，并进行比较；组成返流式水力旋流器溢流串联系统，进行性能测试，得出系统的分离性能和级效率曲线。

A new method for establishing Richards polymorphic site index model was developed. And the Cunninghamia Lanceolata was taken as an example. Data from stem analysis of 164 trees was used.

中文摘要：本文以杉木为例，探讨了基于导向曲线的Richards多形地位指数模型的研建新方法——参数置换法。

The average recover rate is 95.4% and RSD is 3.5%. The average content of sciadopitysin is0.147%(RSD is 2.86%). 5.The technology to rich the total flavonoids in branches and leaves of Taxus yunnanensis. Methods:(1) To extract the sample by sonication;(2) Study the technology of extract and defat with L9 (3~4) orthogonal test;(3)Study the process of purification by macroporous resin: containing resin type, liquor concentration, the category and quantity of eluant.

云南红豆杉中总黄酮富集工艺的研究方法：(1)确立用超声法初提药粉；(2)用L9(3~4)正交试验考察脱脂和醇提的工艺参数；(3)用大孔树脂研究总黄酮的富集工艺：考查树脂类型、上样液浓度、洗脱曲线等。

Furthermore, the data of falling weight deflectometer and the system identification method are jointly used in conjunction with the proposed procedure for estimating material properties from responses of multi-slabs on foundation. The analysis is based on quasi-static linear elastic, dynamic frequency domain fitting and dynamic time domain fitting.

然后，将落锤式弯沉仪所记录的输入和输出值时程曲线，根据系统识别原理和灵敏度分析理论，建立材料参数的拟静力反演分析方法、频域反演分析方法和时域反演分析方法。

There is an important theoretical and practical sense in testing the diphase relative permeability curve of the equilibrium of oil and gas under the conditions of high temperature and pressure.

相渗曲线是描述油气藏渗流中一个非常重要的参数，标准的测定方法是在室温低压下采用模拟油模拟气来进行测试，未考虑地下高温高压及平衡油气渗流的实际情况。

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。