请输入您要查询的字词:
单词
chemical oxygen demand
释义
chemical oxygen demand
Encyclopedia
理学
环境分析
释
chemical oxygen demand;COD
化学需氧量
水样在一定条件下,以氧化1升水样中还原性物质所消耗的氧化剂的量为指标,折算成每升水样全部被氧化后,需要的氧的毫克数。以毫克/升表示。化学需氧量反映了水中受还原性物质污染的程度,也是有机物相对含量的综合指标之一。
Chemistry
>分析化学>化学分析>释义
chemical oxygen demand (COD)
化学需氧量
Biology
chemical oxygen demand
COD
化学耗氧量;化学需氧量
随便看
metal-semiconductor field-effect transistor
metal-semiconductor field effect transistor, MESFET
metal-semiconductor field-effect transistor, MESFET
metal-semiconductor junction
metal-semiconductor transition
metal serrated gasket
metals heat treatment
metalsmith
metal spring gravimeter
metal spring vibration isolator
metal stable isotope
metal star
metalster
Metal Storm
metal structure of pumping station
metal sulfur cluster
metal surface bioactivation
metal surface cleaning agent
metal surface degreaser
metal surface plasmon polariton
metal surface regulator
metal surface treatment chemical
metal tank
metal thermal reduction to preparation of rare earth metal
metal thick-film nitride-silicon
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:2025/6/9 10:38:42