双变径轮式抽油机是在继承常规游梁式抽油机优点的基础上设计而成的大载荷、长冲程、低冲次节能型抽油机。
A dual variable-diameter wheel pumping unit, which has long stroke and low pumping speed and large load capacity, is designed based on conventional beam pumping units.
弯管内模支撑由半圆弧形支撑架与双变弧垫模组成。
The inner mold support of a knee pipe is composed of the semi-circular arc-shaped support frames and a bivariate arc pad mold.
提出了一种可借助于最小敏感性原理求解本征能量的双变分参数的近似方法。
It proposes an approximation method with two variational parameters for finding the eigen-energies by principle of minimal sensitivity.
建立了一个适用于复杂地形的冰雹云模式。模式是二维、弹性、非静力、采用地形跟随坐标、包含双变参数冰相微物理过程参数化。
A hail cloud model that is two dimensional elastic non hydrostatic, USES a terrain following coordinate system and includes double parameters for ice phase microphysics, has been developed.
提出采用大功率IGBT设计变极性脉冲MIG焊双逆变弧焊电源。
The high-power IGBTs are adopted to design the dual inverter arc-welding power source for variable polarity pulse MIG welding.
本文采用双逆变技术研制了一种新型的焊接磁搅拌装置。
A new welding electromagnetic stirring device was developed with the dual inverter technique in this paper.
这种双摇杆变幅机构可用于浮式起重机的带载变幅作业，具有高的生产率和作业灵活性。
The double rocker mechanism (with back rocker driving) is used to luffing operation of floating crane. It has high productivity and transfer flexibility.
针对经典单周控制有源电力滤波器(APF)存在的问题，提出了单周控制APF的双桥逆变控制策略。
Aiming at some problems in one-cycle control of conventional active power filter (APF), a novel one-cycle controlled APF with double-bridge is proposed.
目的研究一类具有连续偏差变元的双曲偏泛函微分方程边值问题解的振动性。
Aim To study a class of boundary value problem of hyperbolic partial functional differential equations with continuous deviating arguments.
这种新型的无刷双馈电机转子采用变极原理设计。
This new type of brushless double-feed machines rotor is designed by pole-changing method.
本文分别分析了双馈发电机和变桨距系统的数学模型。
In this paper, the mathematical model of DFIG and variable pitch system is established.
重点研究了非线性双跳变电路中跳变幅度的变化对饱和输出功率的影响。
The changes of the step amplitude in non-linear dual step circuits are emphasized which affect saturated output power.
从而可实现采用小吨位设备，制造出加工余量少的变截面带双法兰钢半球壳锻件。
This new method made it true to use light tonnage equipment to forge the half spherical steel shell with small metal allowance and variable sections.
在详细分析现有变步长LMS算法的基础上，给出一种以双曲正切函数的改进形式为变步长的LMS算法。
A new variable step size LMS algorithm with improved hyperbolic tangent function is presented, which is derived by the extensive review about some existing LMS algorithms.
双侧橄榄体肥厚性退变发生于被盖出血并累及小脑上脚。
Bilateral hypertrophic olivary degeneration occurs with tegmental hemorrhages involving a superior cerebellar peduncle.
该系统包含升压和逆变两个环节，均采用电压外环、电流内环的双环pwm控制方式。
The two parts both adopt double loop PWM control mode which consists of outer voltage loop and inner current loop.
将双旗山金矿矿化类型划分为石英脉型和蚀变岩型。
The mineralization type of Shaungqishan gold deposit has been divided into quartz vein and alteration type.
通过规则齿形结构面在双轴应力条件下的蠕变试验，对规则齿形结构面剪切蠕变特性进行了深入的研究，分析了规则齿形结构面蠕变的基本规律。
Testing study is made on the creep characteristic of regularly dentate discontinuity in the condition of two-axial stresses, and the normal creep rule of regularly dentate discontinuity is analyzed.
方法对窦房结变时性功能障碍的16例患者，植入闭环刺激双腔频率适应性起搏器。
Methods Dual chamber rate adaptive pacemaker with closed loop stimulation were implanted into 16 patients with sinus chronotropic disability.
汤普金斯紧锁双眉，他没想明白在塔顶加速的原子振动和孙女加速变老的假设之间有什么联系。
Mr. Tompkins frowned. He did not see the connection between speed up atomic vibrations at the top of a tower, and the granddaughter's supposed speeded up ageing.
文中阐明了这种复变应力函数迭加解法的基本原理，并用此方法计算了双孔、三孔和四孔边裂纹板的若干数值例子。
The basic principles of the method are described, and some numerical examples of the radial cracks appearing at the boundary of twin, three and four circular holes are calculated.
基于重庆市某空军场站的双U管竖埋式土壤源热泵系统工程，对该系统冬季变工况下的运行能耗进行了分析。
This paper analyzed the energy consumption of a system in operation status——the double U-tubes vertically buried tube ground-source heat pump system in an air force station of Chongqing.
双剪切试样是设计用于研究镍基单晶超合金的蠕变问题。
The double shear specimen was designed for the study of the creep behavior of nickel base single crystal superalloys at high temperature.
本文研究了一类具有连续偏差变元带中立项的双曲偏泛函微分方程解的H-振动性，给出了判别解H-振动的充分条件。
This paper studies the H-oscillations of hyperbolic partial functional in differential equations with deviating arguments and provides it with sufficient conditions.
在大时变鲁棒数字PID控制方法的基础上，结合二自由度的内模控制结构，实现了控制器参数的数字双PID分离设计。
Separate designs of a dual PID controller were presented based on the large time-varying robust digital PID control combining with two degrees of freedom internal model control structure.
文中基于卫星相对运动状态转移方程，推出了星座双脉冲式变轨控制的理论解；
In this paper, thinking of three-satellite constellation, optimal impulse orbit transfer is studied for constellation launching.
采用双曲函数与幂函数结合的模式拟合沥青混凝土的三轴蠕变试验曲线，对大坝进行蠕变分析。
Furthermore, a function of hyperbola combined power is adopted in modeling the curves of long-term triaxial creep test of the asphalt concrete; and creep analysis is performed for the dam.
本文首先确定了双丝焊数字化电源的总体方案，设计了两台并行的IGBT全桥逆变主电路的拓扑结构。
A general design of digital twin-wire welding power supply was selected firstly, and two side-by-side IGBT full bridge converter main circuit structures were designed.
本文首先确定了双丝焊数字化电源的总体方案，设计了两台并行的IGBT全桥逆变主电路的拓扑结构。
A general design of digital twin-wire welding power supply was selected firstly, and two side-by-side IGBT full bridge converter main circuit structures were designed.
应用推荐