On this background, an optimization method for stroke frequency of submersible reciprocating pump based on submergence depth forecasting was presented.
在这一背景下，提出一种基于沉没度预测的潜油往复泵冲次优化方法。
This Unit has large load, low stroke frequency, long stroke, high efficiency environmental protection, compact structure, safety, good movement performance.
该机具有大载荷、低冲次、长冲程、高效节能环保和结构紧凑、可靠性高、运动性优的特点。
It applied the method of on-the-spot photograph to comparing the stroke frequency and rhythm of the male and female kayakers who took part in the "World Cup".
采用现场摄影法，比较世界杯赛中男女皮艇运动员的桨频和划桨节奏。
Crack size, hammer stroke frequency and rotary speed influence the drilling string fatigue life involve, in which the crack size and stroke frequency were two major factors.
影响钻柱疲劳寿命的因素包括钻柱裂纹尺寸、空气锤冲击频率、转盘转速等，而空气锤冲击频率与裂纹尺寸是影响钻柱疲劳寿命的两大主要因素。
The application of vapor-liquid reseparator in the main return tube can effectively decrease the frequency of wet stroke and rapidly handle it and thus increase refrigerating efficiency.
采用在回汽总管上设置汽液再分离器，可以有效的减少湿冲程次数并能快速处理湿冲程现象，提高制冷效率。
Same function as DPP-250: frequency control, adjustable stroke, touch heating, positive forming, capsule orientating, image and character register, air cushion heating-seal and chequered plates.
产品介绍：功能与250型类同：变频调速、行程可调、接触加热、正压成形、胶囊调头、图文对版、气垫热封、上下网纹。
The system consists of microcomputer and transient wave converter etc For the measurement of working parameters of drilling machine such as impact energy or frequency, stroke and pressure.
本研究系采用微型计算机、波形存贮器等技术装备组成了凿岩机械冲击能、冲击频率、行程、压力等工作参数的微机测试系统。
This paper aims to explore the stroke effect, word frequency effect and morpheme frequency effect in the recognition of Chinese one-character word by foreign students.
采用词汇判断任务考察了留学生汉语单字词识别中的笔画数效应、词频效应和词素频率效应。
The effects of character frequency, stroke number and radical number on Chinese recognition were studied under different levels of radical brightness.
本文采用命名作业法探讨在不同汉字部件亮度条件下的字频效应、笔画数效应及部件在汉字识别中的作用。
Hiccup , apathy , torpor , dribbling, bucking , stethocatharsis. When these symptom frequency curves go up , it means the recovery of stroke is hindered .
呃逆、表情淡漠、反应迟钝、流涎、饮水呛咳、咯痰这些症状出现频率的上升则影响神经功能缺损的恢复。
The theory and test proved that the impacting frequency of hydraulic rammer can be adjusted by pipe hammer stroke. The influences of stroke on characteristics of hammer are discussed.
通过理论和实验证明改变液压夯管锤的冲击能和冲击频率，比较简单而经济的方法是调节液压夯管锤的行程，并讨论了改变行程对液压夯管锤的性能有哪些影响。
Most remarkably, most patients reported at follow-up that the frequency of migraine attacks had decreased since the stroke.
最明显的是，大多数患者在随访期间报告称，卒中后偏头痛发作的频率降低。
Reciprocating pump flow and pressure head has nothing to do with the pump cylinder size, and the reciprocating frequency of the piston stroke.
往复泵的流量与压头无关，与泵缸尺寸、活塞冲程及往复次数有关。
Analyses indicate that the eccentricity, the stroke and the frequency of the inner cylinder all affect the instantaneous flow rate distribution remarkably.
分析结果表明，环空偏心距、内管冲程、内管冲次对瞬时流量分布的影响较为明显。
Tolerances, gaps, surfaces, installation chamfers, length of bearing surface, length of stroke, frequency, speed, etc.
间隙，表面，安装倒角，表面承受的长度，行程的长度，频率，速度等等。
The stroke number of Chinese character and character frequency are two important factors in children's cognition of Chinese characters.
汉字的不同笔画数与熟悉度是汉字识别中的重要影响因素。
ObjectiveTo investigate the effect of low frequency stimulation on motor function of stroke patients.
目的探讨低频电刺激对脑卒中偏瘫患者神经功能恢复的影响。
The calculating formulas for the power of single stroke, utilization efficiency of energy and frequency of strokes are derived from the energy equation of the reciprocating pump.
并根据往复泵的能量方程推导了液动冲击器的单次冲击功、能量利用率和冲击频率的计算公式，并利用实测数据进行了验证。
Objective to explore the incidence rate of cognitive deficits among stroke patients, and to explore the influence of hypertension, hyperlipemia and exchange-frequency on cognitive deficits.
目的了解脑卒中患者认知障碍的发生率并探讨高血压、高血脂、交流频率对其影响。
Objective To assess the frequency of infectious complications and its risk factors following an acute stroke;
目的了解脑卒中后感染性并发症的发生状况及其危险因素 ；
WD-222 is a passive two sub-frequency sound, using a 12-inch long-stroke woofer driver and a 1-inch tweeter drive.
WD-222是一款二分频无源音箱，采用了一只12英寸超长冲程低音单元驱动器和一只1英寸高音单元驱动器。
WD-222 is a passive two sub-frequency sound, using a 12-inch long-stroke woofer driver and a 1-inch tweeter drive.
WD-222是一款二分频无源音箱，采用了一只12英寸超长冲程低音单元驱动器和一只1英寸高音单元驱动器。
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