“catalyst grading”的概念、定义、翻译、参考文献-科学参考

单词	catalyst grading
释义	catalyst grading Encyclopedia 工学固定床加氢释 catalyst grading催化剂级配在一定原料性质和工艺条件下，将不同功能的加氢催化剂按一定的比例依次装填，以满足产品性质和运转周期要求的技术。是固定床加氢工艺的核心技术之一。
随便看	automatic runback device automatic sample automatic sampler automatic sampling for polluted water automatic sectionatizer automatic segmentation and control automatic sequence automatic set automatic sheet feeder automatic sleeve sewing machine automatic slurry sampling system automatic smoke oven automatic speaker recognition automatic speech recognition automatic steam-temperature control automatic steel-ball feeding control automatic stop motion automatic storage and retrieval system automatic summarization automatic summarization, automatic abstract generation automatic surface meteorological observing system automatic switching automatic telescope automatic terrain avoidance system automatic terrain following system

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