In your reviewing the technical value of the quadruplex pump please consider that this unit is equipped with four pulsation dampeners on the discharge side allowing the pump to achieve a uniformity at least comparable with that of a triplex pump 当考虑四泵头的泵的技术价值时，请注意到这一装置在出口侧装有四个脉冲缓冲器，这就可以使泵达到平稳的操作，至少是可以同三泵头的泵相比。
Abstract : with a view of time - varying characteristic of the v ibration signal measured on reciprocating machinery and a brief introduction to the wavelet analysis and a nonlinear wavelet denoising theory , the paper makes an approach , by taking an triplex pump widely used in heavy machinery as an exa mple , on the waveform feature extraction which reflects the various conditions o f reciprocating machinery with nonlinear wavelet denoising analysis method 文摘:针对往复机械振动信号的非平稳时变特点,本文在简述小波分析及非线性小波消噪理论的基础上,以重型机械使用的三缸泵为例,研究了用非线性小波消噪方法提取往复机械状态下的波形特性。
The authors make a deep theoretical analysis on the system , build up the mathematical model of the triplex electro - hydraulic servo actuator system , analyze the effects of the redundance control on dynamic performance of the system and the dynamic performance of triplex electro - hydraulic servo actuator system after any trouble happens 并对该结构伺服作动系统进行了深入的理论分析，建立了三余度伺服控制系统的数学模型，分析了余度控制对伺服作动系统动态品质的影响，以及系统出现故障后余度伺服作动系统的动态品质。
The operating process of network cipher computer and kdmc are discoursed firstly , then the tcp / ip stack of linux is introduced , and an ipsec realization method with using a cipher card is put forward . triplex key system is adopted for internet key exchange ( ike ) . the database and other modules are also designed and implemented 论文论述了网络密码机和密钥管理中心的工作流程，接着介绍了linux下tcp / ip内核协议栈，提出了加密卡方案，采用了三重密钥管理体系实现了internet密钥自动交换，进行了中心数据库设计与实现，最后对其它模块进行了实现。
