查询词典 tube well

This paper analyzed the influence and rule of the setting for the key parameters, constant set, and operator set in GEP and proposed an improved GEP algorithm. The new algorithm was applied in the tunneling fields, and got the horizontal and vertical ground settlement formulas of Double-O-Tube shield. The experiment shows that the mined formulas may match the real value quite well.

本文分析了基本的GEP算法中关键参数、常数集、符号集等设置对公式发现的影响和规律，提出了GEP算法的改进方法，并将其应用在隧道工程领域，得到了双圆盾构施工横向和纵向的地面沉降预测公式，与实测值的比较表明所发现的公式有很好的吻合度。

Wells, well drilling technology is extremely important to have the requirements for large-diameter steel tube-wells.

水井的成井工艺极为重要，必须要求是大口径钢制管井。

Emphatically analyze wind tube leakages as well as factor and so on short-term air current circulation to the air-conditioning system influence.

着重分析漏风以及短期气流循环等因素对空调系统的影响。

The principle of capillary tube viscometer was analyzed and the measuring apparatus was built to measure the viscosity of the Mn-Zn ferrite magnetic fluid. The effects of the volume fraction of the suspended magnetic particles, mass concentration of surfactants, temperature and the external magnetic field strength as well as the orientation on the viscosity of the magnetic fluid were analyzed.

分析了毛细管粘度计测量粘度的原理，搭建了磁流体粘度测量实验台，测量了锰锌铁氧体磁流体的粘度，分析了不同磁性粒子体积份额、表面活性剂质量含量、温度以及外加磁场方向和强度等因素对磁流体粘度的影响。

The effect of rolling processes on microstructure and properties of non quenched and tempered steels for oil well tube with various composition was studied.

研究了轧制工艺对不同成分的非调质油井管钢组织与性能的影响，并分析了不同组织对韧性的影响。

For the case of deep oil well, pumping rod is eccentric in oil tube during the oil recovery.

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。。。

The corrosion problems bring unpredictable influence and loss in the oil-gas field development and the production process. Thus we need to solve the salts corrosion protection problems on oil gas well tube and equipments.

在油气田的开发与生产过程中，腐蚀带来的影响和损失是不可预见的，这其中我们需要解决盐水对油气井管道及设备的腐蚀防护问题。

Some steel tube used in oil well was leakage in the period of several months.

某油井钢管使用不到一年即发生渗漏。

This permits free expansion of the tube bundle, as well as cleaning of both the insides and outsides of the tubes.

这一份许可证管捆的自由扩充，和两者的内部清洁和在管的外面。

We have analysed the relations among the mechanism and effect of the discharge driven catalysis, the parameters and the operating characterisic of our system and the plasma process in it, founded its mathematical model, made program and simulated numerally the distribution of plasma parameters in positive volume of discharge tube as well as the connection with operation of our device.

分析了将单质金作为催化剂，直接置入封离轴向放电型CO〓激光器正柱区毛细管内，充分利用器件工作时产生的短寿命高能态活性氧，在放电激励工作区中就近实时高效催化促复的优越性，肯定了其保持工作物质的浓度，减少有害组分的产生，勿需额外驱动、加热激活乃至排换工作气体。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。