请输入您要查询的字词:
单词
碱土
释义
碱土
Encyclopedia
农学
碱土
释
Solonetz
碱土
表土可溶盐含量小于5克/千克、交换性钠占阳离子交换量30%以上、pH9以上的土壤。在中国土壤分类暂行草案(1978)及全国第二次土壤普查(1988)中,列为盐成土纲碱土土类;在中国土壤系统分类(2001)中,列为碱积盐成土[注];在美国土壤系统分类中,部分相当于各土纲中具有钠质特性的土类;在联合国世界土壤资源参比基础(2013)中,部分相当于碱土[注]。
随便看
rocket astronomy
rocket body assembly
rocket-borne instrument
rocket-borne telescope
rocketdrome
rocket dynamic characteristics
rocket dynamic characteristic test
rocket dynamic test tower
rocket ejection seat
rocket engine ignition test at high altitude
rocket engine precooling
rocket engine test
rocket exploration of the upper atmosphere
rocket fairing
rocket flow-out test
rocket for artificially triggering lightning
rocket ground support equipment
rocket highway transporter
rocket infrared astronomy
rocket kerosene
rocket mechanism
rocket motion equation
rocket propellant
rocket-ramjet combined cycle engine
rocket range safety control
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:2026/9/22 3:38:03