The design characteristic and notice were probed into in piping of the hydrogenation reactor of diesel hydrotreating plant, in order to decrease design mistakes and increase design quality.
对柴油加氢精制装置加氢反应器在配管方面的设计特点和注意事项进行了探讨，以便减少设计错误，提高设计质量。
Paralleling negative stiffness can not only decrease the isolator's natural frequency, but also improve the damping characteristic and increase the internal resonant frequency of the isolator.
并联负刚度弹簧不但显著降低了隔振系统的固有频率，同时也改善了系统的阻尼特性，提高了隔振系统产生高频内共振的频率。
The characteristic of this process is able to increase the productivity, decrease energy cost and decrease equipment cost.
该新工艺特点是能提高产率 ，降低能耗 ，减少设备费用。
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