中轴

Is the professional production of fan manufacturers, are: gas compression centrifugal blowers; boiler drum with centrifugal fan; generally low, medium, high-grade centrifugal fan, high-temperature preservation centrifugal fan; coal centrifugal ventilation ; Row chemical dust centrifugal fan; general Axial Fan; mining and energy-saving Axial Fan coal mine blast by axial fans.

禹州市鸿华机械制造有限公司是风机生产的专业厂家，主要有：煤气加压离心鼓风机；锅炉离心鼓引风机；一般低、中、高档离心通风机；高温防腐离心通风机；煤炭离心通风机；排尘化工用离心通风机；一般轴流通风机；矿用节能轴流通风机及煤矿防爆用轴流风机。

Measured the basic physical parameters of unsaturated soils in Three Gorges Reservoir area; 2 measured the initial sample matric suction using the unsaturated triaxial testing system, which can be used to evaluate the unsaturated soil strength and stress; 3 the drying and moisture absorption experiments were executed using the Tempe apparatus, and got the Soil-Water Characteristic Curve, permeability coefficients of every stress level were simulated according to the parameters from the SWCC; 4 the unsaturated soil strength tests were carried out using the GDS triaxial testing system, then got the Mohr circle and shear strength parameters; the results from different stress paths were compared; meanwhile, the axial strain-stress ratio-volume strain curve of different matric suction and different radial pressure was got, as well as their relationship; The research, which provided the necessary data and reference for Three Gorges Reservoir area geologic disaster, is the basic component of Three Gorges Reservoir geologic disaster prevention and research, and experimental results will be used directly in the project.

1量测了三峡库区非饱和土的基本物性参数； 2用非饱和土三轴试验仪量测了试样的初始基质吸力，为评估非饱和土的强度和应力水平提供参考； 3用Tempe仪和体积压力板仪进行了非饱和土的干燥和吸湿试验，得到了土-水特征曲线，并根据其参数拟合出各级吸力状态下对应的渗透系数； 4用GDS三轴仪进行了强度试验，得到了Mohr圆和抗剪强度参数；并比较分析了不同应力路径下试验结果；同时得到不同吸力和不同围压下轴向应变-应力比-体应变的关系曲线和其相互关系。该研究是三峡库区地质灾害防治研究工作的基础性工作，其结果将直接应用到工程实际中，为三峡库区地质灾害提供必要的数据和参考。

This text is introducing the most popular product in engeneering machine ZL30 forklift 'transmission case in the function as well we introduce the principle of the design of transmission case .together with the main parts in transmission ,such as the fluid strength ,the overdrive clutch,the structure of planet rowand so on. and in the detailed introduction ZL30 forklift the overdrive clutch and the output shaft design process, and proposed in four axes design's improvement measure.

本文主要介绍了工程机械中应用最广泛的ZL30轮式装载机的行星式变速箱的功能和总体设计思想，并介绍了其中主要零件如：液力变矩器、超越离合器、行星排结构的用途和功能，并详细的介绍了ZL30装载机中超越离合器和输出轴的设计过程，并提出了四轴设计中的改进措施。

The determination of analysis and improvement scheme of structure defects in pipe cold-drawing machine

针对原半轴齿轮精锻模结构和生产中存在的问题，对半轴齿轮精锻过程进行了初步分析，提出了新的模具结构和半轴齿轮结构的改进方

The flow of Non-newtonian fluid in eccentric annuli with the inner cyinder moving axially and it's application in preventing pumping rod and oil tube from eccentric wear in a polymer-driving well are studied in this paper.

在采油过程中，由于油井较深的缘故，抽油杆在油管中是处于偏心位置的，聚驱井产出液在抽油杆做轴向运动的井筒中的流动问题就是非Newton流体在内管做轴向运动的偏心环空中的流动问题。

To the problems of radial leakage caused by axial gap and axial leakage caused by radial gap, the paper discussed the changing in mechanism of axial and radial, which can solute these impactions. Analyzed the backpressure and the back-press port position of back-press technology, Which is the best used.

针对涡旋压缩机工作过程中压缩腔内产生的气体力对整机造成的轴向间隙的径向泄漏和径向间隙的轴向泄漏问题，讨论了解决这些影响的轴向随变机构和径向随变机构，对使用最多的背压技术进行了背压力及背压孔开设位置的分析。

The axial fixed position preload is applied to middle ring of the shaft,the axial rigidity of the angular contact ball bearing is obtained by the impulse excitation tests.

对转台中环主轴施加轴向定位预紧力，通过脉冲激励法试验得到角接触球轴承的轴向刚度，试验结果与理论结果吻合较好，为转台研制中各轴系预紧量的控制提供了理论和实验依据。

In the clinical use of the pre-expanded axial-pattern flap, we noticed that partial necrosis of transferred flap might develop following over pre-expansion.

在预扩张轴型皮瓣的临床应用中我们观察到大量预扩张的轴型皮瓣转移后可能出现皮瓣局部坏死的现象，但目前这方面的研究还比较局限，缺少对轴型皮瓣扩张的安全限度的了解和对皮瓣血液循环立体结构影响的观察。

In this paper, the flux oriented angle of stator flux oriented vector control is deduced by the voltage vector space angle of the direct torque control, and mathematical model is set up based on the direct and quadrature axis component of the stator current.

将直接转矩控制与定子磁链定向矢量控制相结合，利用DTC中电压矢量的空间位置角，推导出SFOVC中的磁链定向角，然后根据旋转坐标系中的d轴和q轴电流分量，建立定子磁链估计的数学模型。

The thrust washer and thrust collar have complementary configurations that maintain the thrust washer in position on the shaft adjacent the thrust collar.

止推垫圈(76)和止推轴环(70)具有互补性的构造，能够将止推垫圈(76)与止推轴环(70)相邻地保持在所述电动机轴上适合的位置中。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。