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- net pressure fluctuation 脉动净压力
- It was found that properties of pressure fluctuation at different axial positions are different under specif... 发现在一定操作条件下,床层不同轴向位置上压强的脉动特征不同,而不同径向上压强的脉动特征则基本相似。
- The plume fluctuation over laser keyhole arises from the pressure fluctuation of keyhole gas. 小孔的波动起伏与小孔内气流压力的不断变化密切相关。
- Several apparatuses for improving extrusion, such as gear pump,pressure fluctuation controller,die thickness regulator, etc. , were introduced. 介绍了几种能够提高塑料挤出制品精度的技术与装置,其中包括齿轮泵、压力波动控制器、口模厚度自动调节装置等。
- The mixing chamber of headbox plays an important role in homogenizing pulp flow and stabilizing pressure fluctuation of pulp. 混合室在流浆箱中起着均匀浆流、稳定压力的重要作用,而混合室的长度是混合室设计中的重要参数。
- In this thesis we investigate the net pressure load on an elastic body that is immersed in an inviscid fluid and undergoes compound vibration motion. 摘要:本篇论文探讨弹性体在流体中受到复合震荡的受力情况。
- The writers analyze the causes for oil pressure fluctuation and its harm and puts forward appropriate preventive measures. 笔者就油压波动的原因及危害进行了分析,提出了相应的防范措施。
- Below the critical points, capillary resistance affects gas percolation, appearing the gas effective permeability increases as the net pressure increases. 在临界点以下，气体渗流受毛细管阻力影响，表现为气体有效渗透率随净压力增大而递增；
- Flow parameters such as phase holdup and pressure fluctuation, as well as their axial and radial distributions were measured at different superficial phase velocities. 在配料固相质量分数为29%25的条件下，实验测定了不同操作条件下反应器内的轴、径向相含率及其分布，轴、径向压强脉动，初步揭示了分布器以及操作条件对局部流动参数的效应。
- The dimensionless net pressure, difference of Yang’s modulus and fracture toughness between reservoir and salutatory barrier also affected the behaviors of hydraulic fracture. 产层与突变体之间的弹性模量差异、断裂韧性差异以及缝内净压力无因次量是影响裂缝走向的重要因素。
- Sensitive pressure transducer was used to record the combustion pressure fluctuation in furnace to study the combustion pressure fluctuation of “puffs” in stoker. 针对层燃炉冒正压时的燃烧“喘息”现象,利用微压传感器对炉膛燃烧压力波动进行了测量,采用自相关函数结合功率谱密度的方法分析了频谱特征。
- With an example, the theoretical principle for designing accumulator absorbing pressure fluctuation is presented by analyzing the dynamic characteristics of hydraulic system. 摘要针对蓄能器的应用，通过实例，从分析液压系统动态特性的角度，阐明设计蓄能器吸收压力脉动时应遵循的理论依据。
- Results indicated that the increasing of dust removal periodic time lead to higher dust removal efficiency, larger pressure drop and bigger pressure fluctuation. 实验证明，随着清灰周期的增大，颗粒层除尘效率提高，同时压力损失和压力波动幅度也随之增大。
- The properties and components of pressure fluctuation signals in coarse circulation fluidized bed was researched by power spectrum analysis,R/S analysis and chaos analysis. 应用功率谱分析法、R/S分析法及混沌分析法对大颗粒循环流化床压力波动信号的性质和组成进行了研究。
- DOES THE PRESSURE FLUCTUATE FROM LESS THAN 5 PSI TO 120-150 PSI? 压力从小于5PSI波动到120－150PSI了吗?
- Should the pump pressure fluctuate very often, what could be done? 万一泵压忽高忽低,应该怎么办?
- The patient's blood pressure fluctuates within a narrow range. 病人血压变化的幅度不大。
- When a Series 994 backflow preventer is installed for dead-end service applications, discharge from the relief vent may occur due to water supply pressure fluctuation during static no-flow conditions. 当系列994防回流阀安装在终端应用场合时，由于在静止无流动情况下水供应压力波动可能会从安全阀排放口产生排放。
- The effect of the signal processing indicated that ability of defect is enhanced,and that the method of the wavelet packet is more effective than the method of wavelet analyses in the pressure fluctuation signal processing in SCISR. 同时验证了小波包分析在撞击流反应器内压力波动信号处理中应用的有效性,而且小波包分析方法比小波方法处理信号的效果更为理想。
- The characteristics of pressure fluctuation in a standpipe at negative pressure gradient were investigated based on measurement in the gas-solid two-phase circulating fluidized bed(CFB). 引言气固循环流化床内的颗粒是沿着一个回路循环流动的,既有颗粒上行部分也有颗粒下行部分。
