片语

long arm stroke长划臂

long-stroke pump长沖程泵

long-stroke piston长行程活塞

Long Dot Stroke长点

long shifting stroke长行程窜辊

long-stroke strut长沖程减震支柱

long-stroke press长行程压机

long-stroke cylinder长行程液压缸

英汉例句

• this belt driven design provides modest load carrying capacity, high speed and very long stroke more…

  驱动设计提供了温和的承载能力，速度快，很长沖程更多这带…

• the cylinder chain lower super long stroke pumping unit is a kind of up to date and high efficiency equipment.

  圆柱链低矮式超长沖程抽油机是一种新型高效有桿采油设备。

• 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.

  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、长沖程、低沖次节能型抽油机。

• the tower type belt driven long stroke pumping unit is composed of the crank-linkage-slide mechanism, movable pulley-narrow belt-fixed pulley mechanism and compound drum stroke-increment mechanism.

  无游梁塔架式胶带传动长沖程抽油机由曲柄-连桿-滑块机构、动滑轮-窄胶带-定滑轮机构和复合滚筒增程机构组成。

• according to the dynamic principle of mechanica1 system, the motion differential equation and dynamic equation fora load belt long stroke pumping unit system are established.

  根据机械系统动力学原理，建立了宽带长沖程抽油机系统运动微分方程和动力学方程。

• the author analyses the domestic made long stroke well pumping units both in use or in developing and points out the significance of the transformation of lengthenings…

  并对国内已经生产及正在开发的各种长沖程抽油机进行了剖析，指出了对现场在用的常规及异相抽油机进行增程改造的意义。

• the favourable conditions for developing the drum type long stroke pumping unit are expounded.

  论述了发展滚筒式长沖程抽油机的有利条件。

• the method of motion analysis of new type and long stroke pumping unit with vertical walking-beam and pylon was studied.

  对新型长沖程抽油机——竖游梁塔架式抽油机的运动分析方法进行了研究，导出了该机悬点位移、速度及加速度的计算公式。

• many idler pulleys are adopted in the structure of the new type chain pumping unit instead of girder pole in traditional connection mode, which can achieve a long stroke at work.

  新型链条抽油机采用链条轨来代替传统抽油机连桿的硬连接以满足大沖程的工作要求。

• this paper presents 15 typical long stroke non-beam pumping units at home and abroad, briefly introducing their structural features, operation principles and economic benefits.

  本文集锦了国内外15种典型长沖程无游梁抽油机，扼要地介绍了它们的结构特点与工作原理和经济效益。

• the application of single-action sleeve telescopic cylinder can help to solve the contradiction of long stroke and narrow workplace.

  应用后法兰单作用套筒伸缩气缸可以解决行程太长而工作场所较窄的矛盾。

• base on understanding of characteristics of ballscrew, the positioning systems with ballscrew for long stroke positioning with nanometer resolution are reviewed.

  通过分析滚珠丝杠驱动机构的特点，对目前利用这种驱动方式实现大行程的具有纳米分辨率的定位系统的关键技术进行论述。

• the scheme meets the test requirements on long stroke and high precision impact of electric impact platforms, and simultaneously supports and guides moving coils.

  本方案解决了在对动圈支撑导向的同时，满足电动沖击台长沖程、高精度沖击的试验要求。

• the crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.

  曲柄链条动滑轮式长沖程抽油机是一种新型抽油机。

• long stroke pumping unit(model 20~22) with derrick frame was developed for new production.

  塔架式长沖程抽油机（20~22型）是配合油田采用新工艺而研制开发的。

• i made four of these which, with the two long stroke 49's, made six.

  我提出了四项这些，与两个长沖程49的，取得了6 。

• chain type long stroke pumping unit is mainly used in mid and anaphase oilfield.

  链式长沖程抽油机主要是为开采中、期油田而设计的。

• with the development of deep wells and viscous crude oil wells, a greatly increasing attention is being paid to the chain-driving pumping units with long stroke length.

  随着深井和稠油井的发展，长沖程的链条抽油机越来越受到重视，为提高经济效益对其进行结构优化设计是石油生产的需要。

• this pumping unit has many advantages such as small in size, easy to perform long stroke with low stroke times, and convenient to realize automatic control, etc.

  该抽油机具有体积小、占地面积少，易于实现长沖程、低沖次、便于实现自动化控制等优点。

• three driving modes of different velocity and resolution (ac mode, gate mode and dc mode) are used to realize both long stroke length and high resolution.

  通过三种不同速度和分辨率的驱动方式（ac模式，gate模式和dc模式）兼顾大行程与高分辨率的驱动。

• the chain of conventional chain pumping unit is easy to break and the seal of its air-balancing unit has short service life, therefore, a long stroke double-chain pumping unit is designed.

  针对普通链条式抽油机易发生断链和气平衡装置密封部位寿命短等问题，提出了长沖程双链条同步驱动抽油机设计方案。抽油机具有双链条同步驱动换向机构，可实现增距式柔性换向；