查询词典 lower casing

This removal of air from the pump casing produces a partial vacuum on the pump inlet ,here the fluid is trapped between the teeth of the upper and lower gears and the pump casing .continued rotation of the gears forces the fluid out of the pump discharge .

这种泵内空气运动使泵吸入口处形成了真空，于是外部油箱的液体在大气压的作用下，由泵的入口进入，聚集在上下齿轮和泵壳体之间，齿轮连续的旋转使液体流出泵的出口。

Bull gear and pinion gear are mounted in lower casing via bearing seat.

大小齿轮均采用渗碳淬火钢进行制造，并采用硬齿面加工方法加工而成，强度很高。小伞齿轮和大伞齿轮均通过轴承座装入下壳体中，两轴承座法兰下设有调整垫，用于调整齿轮副接触区的位置和齿侧间隙。

The difference between the calculating results of gas-oil rate considering or neglecting casing gas is compared. It is demonstrated that bigger error will be caused without considering casing gas. When the pressure at the casing shoe is lower than the babble point pressure, there is a certain proportion relation between the easing gas production and the submergence pressure as well as the easing-tubing sectional area ratio.

针对放套管气生产油井，现场测试了多口油井的套管气量，比较了考虑套管气与忽略套管气对气油比计算结果的差异，证明忽略套管气产量会给气油比计算结果带来较大偏差。

The pump rotor shaft and motor are installed vertically, pump inlet at the top of the lower part of the exhaust port at the pump, pump casing with a water-cooled units, to reduce the pump bearings and seal at the temperature.

泵的转子轴及电机均为竖直安装，泵进气口在上面，排气口在泵下部，泵壳带有水冷套，以降低泵轴承及轴封处的温度。

This type of tubing anchor is constitute by anchor body,turnover slip and the centralizer,it is installed in the lower end of the PCP.When the rotor is rotating,it drives the shell and rotary anchor to rotate clockwise.In the role of the friction between turnover slip and the casing,the turnover slip turns over , its outer diameter increases,then it locks to the casing and the anchoring implements.

这种油管锚由锚体，翻板卡瓦和扶正体等组成，安装在螺杆泵下端，泵转子旋转时，带动泵外壳，旋转锚顺时针方向转动，在翻板卡瓦和套管摩擦力作用下，翻板卡瓦向外涨出，外径增大，卡封在套管上，实现锚定。

When the oil level in the lower casing reaches the intermediate mark in the oil window (not stop feeding oil to the gear reducer from filter press), startup oil pump in the lubricating station to feed oil to lower casing. In order to assess the oil level in the upper casing, it is allowed to remove the plug screw of observation hole at thrust bearing oil sump in the upper casing.

较为方便的方法是拆除减速机箱体中分面法兰上的呼吸器，利用其安装孔对减速机下箱体进行加油，当减速机下箱中的油位到达后油窗中间刻线时（不停止滤油机对减速机的加油），可以启动润滑站油泵对减速机上箱体进行加油。

The drive unit includes a drive shaft (3), which is arranged to carry the centrifuge rotor (2) and is rotatably journalled in at least one bearing member (4, 5), and a casing (6), which delimits an upper space (7), in which the drive shaft and the bearing member are located and a lower space (8) for storing oil.

该驱动组件包括一驱动轴(3)，用来支承离心转子(2)，并以轴颈可转动地支承在至少一个轴承件(4、5)内；一个壳体(6)，它界定一上部空间(7)和一下部空间(8)，驱动轴和轴承件配置在上部空间内，下部空间供贮盛润滑油用。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。