3) weed occurrence quantity
杂草发生量
4) characteristics
[英][,kæriktə'ristik] [美][,kærəktə'rɪstɪk]
发生特点
1.
The Pest Characteristics and Control Strategy of the Landscape Plants;
城市园林植物病虫害发生特点与防治对策
2.
The Characteristics of College Students with PTSD and its Enlightenment to Education;
大学生创伤后应激障碍的发生特点及教育的启示
5) occurrence characteristics
发生特点
1.
Main weeds species in gardening plant nursery in Jinhua City and its occurrence characteristics;
金华市常见绿化苗圃主要杂草种类及发生特点
2.
The research progress of occurrence characteristics of Spodoptera exigua in coastal agricultural area of Jiangsu Province;
江苏沿海农区甜菜夜蛾发生特点研究进展
3.
Composition and occurrence characteristics of weed community in flat-planting narrow-row solid-seeded soybean fields;
窄行平作密植大豆田杂草群落组成与发生特点
6) Occurrence
[英][ə'kʌrəns] [美][ə'kɝəns]
发生特点
1.
To effectively prevent midge occurrence,the article bases on 2006 wheat midge occurrence fact,summarizes the characteris- tics and analyses the reasons of outbreaks in some area.
结合2006年小麦吸浆虫的发生实况,总结了其发生特点,并对局部麦田的暴发成灾原因进行了分析。
2.
Its morphological characters,harmfulness and occurrence in Guiyang were studied.
本文对此种瘿螨的形态鉴别特征、危害性和周年发生特点进行了初步研究。
3.
Systematic investigations on the occurrence feature of Liriomyza sativae Blanchard were carried out in Gutian county of Fujian province from 1998 to 2000.
通过 1998- 2 0 0 0年对美洲斑潜蝇在古田县的发生特点的系统调查 ,提出了以农业防治为基础 ,保护利用天敌 ,结合药剂防治的美洲斑潜蝇综防技术措施 ,并在生产上进行示范和推广 ,取得了良好的经济、社会和生态效益。
补充资料：1,3-二氧杂草
CAS: 505-65-7
分子式: C5H10O2
分子质量: 102.13
沸点:119℃
中文名称:1,3-二氧杂环庚烷；1,3-二氧杂草
英文名称: 1,3-Dioxepane；tetramethylene formal；[1,3]Dioxepan
分子式: C5H10O2
分子质量: 102.13
沸点:119℃
中文名称:1,3-二氧杂环庚烷；1,3-二氧杂草
英文名称: 1,3-Dioxepane；tetramethylene formal；[1,3]Dioxepan
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条