请输入您要查询的字词:
单词
PN
释义
PN
Encyclopedia
医学
肠外营养
释
parenteral nutrition; PN
肠外营养
通过胃肠道以外途径(即静脉途径)提供营养支持(包括氨基酸、必需脂肪酸、维生素、电解质和微量元素等)的方式。
Astronomy
PN
全称:planetary nebula。行星状星云
随便看
rock moisture content experiment
rockoon
rockoon sounding
rock ore appraisal sampling
rock/ore radioactivity
Rockot launch vehicle
Rock Painting
Rock Painting of Tibet
rock paintings in Alxa League
rock paintings in Chifeng City
rock paintings in Dengkou County
rock paintings in the Baicha River basin
rock paintings in the depopulated zone of northern Tibet
rock permeability
rock permeability coefficient
rock permeability experiment
rock physical and mechanical properties
rock physical model experiment
rock physical properties experiments
rock-plant
rock plants
rock plasticity
rock porgy
rock porosity experiment
rock proportion experiment
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/5/17 23:00:00