请输入您要查询的字词:
单词
PNR)
释义
PNR)
Encyclopedia
农学
仔鱼饥饿“不可逆点”
释
starvation in larvae ("the point-of-no-return"; PNR)
仔鱼饥饿“不可逆点”
在饵料缺乏的情况下,初孵仔鱼达50%或100%死亡时的饥饿时间。又称仔鱼饥饿“致死临界期”、仔鱼“不可逆转饥饿”(irreversible starvation)、仔鱼“生态死亡”点。是从生态学角度评价仔鱼的饥饿耐力的一项指标。常用此作为仔鱼“生理死亡”的界限。
随便看
equal thickness fringes
equal thickness interference
equal-time commutation relation
equal time sample design
equal to
Equal traffic rights
equal triangles
equal trivectors
equal value gray scale
equal vectors
equal weight average combination
equal weighted rate of return
equant
equantequation
equate
equating
equating based on classical test theory
equating based on item response theory
equating coefficients
equation
equational
equational category
equational class
equational class of lattices
equational closure
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:2026/4/29 7:20:42