轴

For those slurry pump with expeller seal combined with packing or packing seal, the shaft together with impeller should be able to be rotated along pump rotation direction by hand. Otherwise the impeller clearance should be adjusted (For those slurry pump with mechanical seal, adjust the impellergap first, then mechanical seal).

对于填料加付叶轮组合式密封或填料密封式渣浆泵，用手按泵转动方向转动轴，轴应能带动叶轮转动，不应有摩擦，否则应调整叶轮间隙（对于机械密封式渣浆泵，应先调整叶轮间隙，再调整机械密封）。

Mechanical seal supplied with high pressure sealing water is recommended when the slurry pump is installed in series (two stages and above tow stages).and the expeller seal combined with packing seal is used when the pum is installed in single-stage.

对于多级串联采用填料加副叶轮组合式密封，二级和二级以上轴封水最低压力一般为：Pn=其中n≥2；Hi为等i级泵扬程；Hn为第n级泵扬程。对采用机械密封，各级泵的轴封水压力一般要求比泵出水口压力大0.1MPa。

Three RNAi target sites (named as Abil1, Abil2, Abil3) targeting the E3B1 (NCBI: NM-024397), an identified target sites and positive control GAPDH-A were selected. The pGenesil-1 eukaryotic expression vectors with the neoR mark and GFP green fluorescent mark were selected to construct E3B1 RNAi plasmid. The effect of RNAi targeting various sites on E3B1 genes expression was evaluated by testing the transfection efficiency with fluorescence microscope and western blot. The most effective siRNA in inhibiting E3B1 genes were screened. The most effective siRNA in inhibiting E3B1 genes screened and used to transfect the neuronal cells. After that, the inhibitor of axon growth was added and the axon growth was observed. Result: The siRNA expressing plasmids targeting the E3B1 were constructed successfully.

选择针对E3B1(NCBI： NM-024397)RNAi的3个靶位点Abil1、Abil2、Abil3和1个不针对任何mRNA的RNAi靶位点以及甘油醛－3-磷酸脱氢酶，用带有neoR选择标志和GFP绿色荧光标志的真核表达载体pGenesil-1构建E3B1 RNAi质粒，分别转染培养的神经元，在荧光显微镜下观测转染率，经G418筛选得到单一的转染细胞，并用Western blot法检测各转染组神经元E3B1蛋白的表达情况，选出具有最佳抑制效应的siRNA转染神经元，加入轴突生长抑制物，观测轴突生长情况。

Based on MATLAB,this paper explores extraordinary ray 's locus and its features in crystal when uniaxial crystal is turning.

基于MATLAB探讨单轴晶体转动时非常光在晶体内的轨迹及其特征，分析单轴晶体转动一周时非常光的轨迹在晶体内转两圈的条件，利用MATLAB给出这些条件的数值解。

On the basis of direct modelling method by using extended Kalman filter, a new method combining extended Kalman filter with adaptive extended Kalman filter is presented to model gyro drift directly from rotate angle of turntable. Extended Kalman filter has great estimation error, what is more, may be divergent if the model and noise statistic are not accurate or wrong. The new method solves the problem of general extended Kalman filter by using fictious noise with timevarying statistic to compensate the linearized model error of extended Kalman filter. The parameter estimators of single-axis and double-axis servo test are designed from it.

本文深入研究了根据伺服试验数据进行陀螺仪漂移误差模型建模的方法，在应用广义Kalman滤波器直接建模的方法基础上，针对广义Kalman滤波器对于不精确或错误的模型和噪声统计，估计误差较大，甚至滤波发散的缺陷，借助于用带时变噪声统计的虚拟噪声补偿广义Kalman滤波的线性化模型误差的新思想，提出了用广义Kalman滤波和自适应广义Kalman滤波算法相结合的方法由转台的转角数据直接建模陀螺仪漂移误差模型，并设计了陀螺仪单轴伺服和双轴伺服测试时参数估计的滤波器。

At foundation of forefathers work, this dissertation goes on the preliminary discussion in conformity with the field of forces of grain and moving rules caused by size of outlet, main research work is as follows: 1 The dissertation analyses the randomness of individual grain and rules as a whole.

在前人工作的基础上，本文就放出口对散体移动规律的影响和散体流动应力场进行了初步的探讨，主要的研究工作如下： 1 分析了单个散体颗粒运动的随机性和整体表现出来的规律性，证明了底部放矿时颗粒在水平方向沿x轴与y轴的移动概率具有独立性。

We look at the matrix map, the horizontal axis for market share, vertical axis is satisfied, we can see a lot of blue in the high point of market share range, is in the first quadrant and the fourth quadrant, only the domestic air-conditioning and refrigerator Brand is a high degree of satisfaction with the first Matrix, a general view that our domestic brands can be said to occupy a cost-effective in the low-end market, but in terms of satisfaction to be improved.

我们看一下矩阵图，横轴为市场份额，纵轴是满意度，可以看到大量蓝点分布在高的市场份额区间，就是在第一象限和第四象限，仅有空调和冰箱的国产品牌是属于满意度较高的第一矩阵，所以总体来看说明我们的国产品牌，可以说性价比占据了中低端市场，但是满意度方面还是亟待提高。

To the same kind of rocks, the penetration rate increases with the increases of electric bit thermal power. When electric bit thermal power keeps fixedness, the penetration rate increases in various degrees with the increases of bit load in difference rocks. Increasing the bit load is beneficial to improve the quality of glass hole wall, but the bit load should not be too big.

对于同一种岩石，钻进速度随钻头电热功率的增大而增大；当钻头电热功率不变时，根据所钻岩石岩性的不同，钻进速度随钻头轴载的增大而不同程度地增大，增加钻头轴载有利于提高玻璃状孔壁的质量，但不宜过大。

This article first determines major component's structure pattern and the main design variable; Then the reference similar driving axle's structure, determines the overall project design; Finally to the host, the driven bevel gear, the differential device circular cone planet gear, the rear axle shaft gear, the full floating axle and the integral-type bridge shell's intensity carried on the examination as well as has carried on the life examination to the supporting bearing.

本文首先确定主要部件的结构型式和主要设计参数；然后参考类似驱动桥的结构，确定出总体设计方案；最后对主，从动锥齿轮，差速器圆锥行星齿轮，半轴齿轮，全浮式半轴和整体式桥壳的强度进行校核以及对支承轴承进行了寿命校核。

CQB-F series fluoric plastic magnetism-driven pump uses magnetic coupling drive without dynamic seal, thus to effectively avoid the phenomena of losing, emitting and leaking borne by shaft seal of common shaft drive type centrifugal pumps.

概述 CQB-F系列氟塑料磁力驱动泵，采用磁力耦合传动，不存在动密封点，因此彻底杜绝了一般轴行动式离心泵轴封处跑、冒、滴、漏的现象。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。