Field use proves the check valve can prevent effectively sand plugging and extend distinctly the pump checking period.
现场试验证明，电潜泵防堵单流阀能够防止砂堵单流阀，提高开机成功率，显著延长电潜泵检泵周期。
To improve the quality of electric submersible pump (ESP) and extend the pump checking period of the ESP Wells, a multifunction automatic control and test system for ESP is developed.
为了提高电潜泵产品质量，延长电潜泵井的检泵周期，研制了电动潜油泵多功能自动控制测试系统。
Stealth probes collect a wide-variety of data throughout the system, checking for any methodical attacks over a long period of time.
隐式探测通过系统收集各种不同的数据，检查任何一个有计划的有策略的攻击。
The aim and task, teaching period division, teaching hours distribution, checking contents and methods of calisthenics course were expounded.
阐述了体育院系健美操普修课教学的目的任务、教学阶段划分、学时分配、考核内容和方法。
In order to maintain the credibility of checking and calibration of the measurement standard equipment, period checking should be carried out.
为了保持计量标准设备检定、校准状态的良好可信度，应该实施期间核查。
This paper also presents a reduction factor of strength required for checking shock strength based on the test results of embedded elements under low period repeated loading.
文章还根据预埋件在低周反复荷载作用下的试验结果，提出了在进行抗震强度验算时所需的强度折减系数。
The agreed warranty period is : 26 months after checking and acceptance or 24 months after complete installing and successful working.
保质期：设备验收之日起26个月或设备安装调试完毕通水后24个月，两者以先到期为限。
Firstly, during the period of open loop control, system traces the change of LPG injection of engine quickly by checking the pre-set two-dimension MAP if conditions of engine are changed suddenly.
首先，在开环控制部分，如果发动机发生突变，系统利用制好的二维MAP图查找所需喷气量，快速跟踪发动机喷气量的变化。
It makes manuscripts and interrelated auditing information transferred expediently, members working in phase, thereby shortens the period of checking and improves work efficiency.
它使得稿件及相关审核信息得以方便地传递，人员协调工作，从而缩短审稿周期，提高工作效率。
Examples of checking computations show that this model and algorithm can solve problems of planning on a large scale within a reasonable period of time, thus effectively reducing a company's costs.
实例验算表明，所给模型及算法可以在合理的时间内求解大规模规划问题，有效地降低公司成本。
Especially in engine running-in period before use, correct checking methods should be adopted to avoid the damage caused by incorrect ways.
特别在使用前的磨合试验中，应采用正确检查方法，尽是避免不正确检查方法造成的损害。
The checking calculation of the post-stressed concrete transfer beam in the construction period and the stretching sequence of the deformed bar is also introduced.
给出了结构的特点和节点构造，以及预应力转换梁施工阶段验算结果及预应力筋分段分批张拉的施工顺序。
The checking calculation of the post-stressed concrete transfer beam in the construction period and the stretching sequence of the deformed bar is also introduced.
给出了结构的特点和节点构造，以及预应力转换梁施工阶段验算结果及预应力筋分段分批张拉的施工顺序。
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