查询词典 used to

I used to live there; the man in Conrad Vickers's photograph used to live there with me.

我过去就住在那里，Conrad Vickers相片里的人以前就在那里和我一起住。

Right : The kitchen table should be based on different regional design work different altitudes, such as washing area, the higher will be more comfortable position, and some water may increase 5CM; lower position will be better used, if the user likes to do pasta, then used to produce pasta at the control desk could be reduced 10CM.

RIGHT：厨房台面应尽可能根据不同的工作区域设计不同的高度，如洗涤区，位置较高时会比较舒适，水池可以调高5CM；而有些台面位置较低时会更好，如果使用者很喜欢做面点，那么常用来制作面点的操作台可以将高度降低10CM。

Aiming at shadow influence problem in vision navigation process of agricultural robot, illumination invariant image based on shadow removal algorithm was introduced. An enhanced OSTU image segmentation method was used, and an optimized Hough transformation algorithm was used to extract crop line, and coordinate transform was applied to obtain navigation parameters.

该研究针对农业机器人视觉导航中存在的阴影干扰问题，采用基于光照无关图的方法去除导航图像中的阴影，然后采用增强的最大类间方差法进行图像分割和优化的Hough变换提取作物行中心线，最终通过坐标转换获得导航参数。

The analysis shows that the settlement observation data of subgrade surface may be used to investigate the stability and the developing tendency of subgrade settlement, and whether the correlation coefficient of curve regression meets the requirement, however, that it cannot be used to calculate post-construction settlement.

分析表明：路基面沉降观测数据可用于考察路基沉降的稳定性、后期发展趋势和曲线回归的相关系数是否满足要求，但无法直接用之进行工后沉降检算。

Methods Transient (15min) brain ischemia was induced by the four-vessel occlusion in Sprague Dawleyrats. The antisense oligodeoxynucleotides of Src and Fyn were used to suppress the expression of Src and Fyn by intracerebroventricular infusion once per day for 3 days before ischemia. After 5 days reperfusion, rats were perfusion-fixed with paraformaldehyde and cresyl violet staining were used to examine the survival of CA1 pyramidal cells of hippocampus.

采用Pulsinelli-Brierley 4动脉阻塞(4-VO)大鼠全脑缺血模型，缺血前连续3d脑室注射Src、Fyn反义寡核苷酸(antisense oligodeoxy-nucletides， AS ODNs)抑制Src、Fyn蛋白的表达后缺血，复灌5d，石蜡切片，焦油紫染色，图像分析测定单位面积内焦油紫染色细胞面积总和，与缺血组及错义寡核苷酸组(missense oligodeoxy-nucletides， MS ODNs)比较进行形态学分析。

MethodsThe rat hind paw swelling elicited by injection of carrageenan and measurement of NO concentration were used to evaluate anti-inflammatory activities; Analgesic effects were evaluated by torsion body method; expandedass and capillary tube methods were used to detect cruor activity.

方法采用角叉菜胶致大鼠足跖肿胀模型和检测NO含量评价延龄草乙醇提取物的抗炎活性；用扭体法观察延龄草乙醇提取物的镇痛作用；采用玻片法、毛细管法测凝血时间研究延龄草乙醇提取物的凝血作用。

A cryostat used to fabricate cryogenics target by the thermal gradient method is designed. Upper and nether thermal pole are used to make the sample box cooling down.

同时研制和设计了一种热梯度法制备核聚变低温冷冻靶用的带光学窗口的异型低温恒温器。

The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.

理论分析和试验研究表明： 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的，具有摩擦动力学的本质，任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响； 2中心轴向载荷作用下，载荷增大使球轴承的固有振动频率升高，载荷越大同样的载荷增幅引起的频率升幅减小，足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响； 3轴向和径向联合载荷作用下，径向载荷不大时球轴承振动的固有频率基本不变，但是可能引起变刚度激励的非线性振动，出现新的频峰，过大的径向载荷将使部分钢球脱离接触，使球轴承的振动和噪声呈现不稳定状态； 4润滑对球轴承的振动和噪声特性有重要的影响，良好的润滑对振动有明显的抑制作用，润滑不充分时，振动和噪声的水平会有明显增高，一定条件下还会激发接触副中的谐振，发出啸声，造成接触表面的伤害，无润滑干接触时，短时的运转就会损伤接触副表面，使振动和噪声迅速增大，并随时可能引发严重的磨损和卡滞失效；接触副润滑良好时，油膜的"刚化效应"使球轴承振动的固有频率有所提高，润滑剂中含有弥散性污浊时，振动的幅度总体升高，但弥散性污浊不会改变球轴承振动的频率特性；浙江大学博士学位论文：球轴承振动的研究 5低速时，球轴承振动的基本特征呈现不稳定状态，随着转速的提高，球轴承振动的频率特性趋于稳定，固有频率频峰升高； 6理论分析表明，干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动，振动的幅值与谐波幅值成正比，实际球轴承中钢球的分布不可能完全均匀，波纹度的激励作用会随时发生；润滑接触的分析表明，波纹度的任意谐波分量均能激励球轴承的振动； 7球轴承的几何和结构参数分析表明，球轴承尺寸越大，径向、轴向和角振动的固有频率越低；钢球中心圆直径增大，球轴承的径向和轴向振动的固有频率基本不变，角振动的固有频率有所上升，振动的幅频特性基本不变；径向游隙加大使球轴承的径向振动固有频率降低，轴向和角振动的固有频率有所升高，径向振动幅频特性的幅值升高，而轴向和角向降低；钢球的数量增多使球轴承振动的固有频率上升，幅频特性的幅值下降，径向振动的幅值下降最为明显；外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高，轴向和角振动的固有频率降低，径向幅频特性基本不变，轴向和角向幅频特性幅值升高；内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降，振动幅频特性的幅值均有升高； 8试验对比表明，传感器采用探针式安装时，由于探针接触副接触特性的影响，钡(量得到的球轴承振动信号有失真，采用专门设计和制作的试验球轴承，以固定式安装加速度计，首次测量得到了球轴承振动的真实信号，通过对振动信号的分析，验证了球轴承振动的理论模型； 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析，以样本长度的均方根值作定阶上界，FPE做判阶准则，给出的AR谱光滑，频率分辨率高，是球轴承振动分析的简便而可靠的手段； 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间，时间间隔，频率范围，同样是球轴承振动分析的可靠的手段，可用作球轴承故障诊断技术。

Purver used a Wind Deformer and Bend Deformers to give the fish that used to be Omar a tail that appeared to swish and float.

奥马尔的后面出现了嗖嗖的风声和漂-着的鱼，是帕沃使用了风的变形器和-转变形器来实现的。

Gz horizontal gradient module, for the first time, is used to delimitate the3D geologic body"s boundary,?gzx is used to delimitate the 2D tabular body"sboundary.

首次提出采用Δgz水平梯度模方法定位三维地质体边界、Δgzx方法定位二维板状体边界。

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。