| |
| ©2011 dictall.com | |
|
|
|
|
说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。
|
|
|
1) insect source tree
虫源树
1.
Through the study of the aggregation mechanism, the concept of insect source trees and their outward features are clearly given out, which will greatly reduce the control scope in the dispersal stage.
该文研究了红脂大小蠹 (DendroctonusvalensLeConte)的空间分布格局 ,为典型的聚集分布 ,提出成虫扬飞阶段化学防治区域 ;通过对该虫聚集机制的研究 ,明确提出虫源树概念及其外表特征 ,极大地缩小了非扬飞阶段化学防治的范围 ;通过越冬规律的研究 ,更加有针对性地提出了仅对数量极少的虫源树根部进行防治的策略 ;采用磷化铝根部土壤熏蒸防治试验 ,有效率达 90 3% 。
2) population source
虫源
1.
The migratory behaviour and population source of the first generation of the meadow moth,Loxostege sticticalis L. (Lepidoptera:Pyralidae) in 2007;
草地螟2007年越冬代成虫迁飞行为研究与虫源分析
3) source tree
源树
1.
Study of some IP characteristics is worthwhile in modeling MPLS, including source tree and share tree, data stream merging, pruning and flooding, unidirectional and bidirectional share tree, and so on.
在MPLS的实现中 ,一些IP特性是值得研究的 ,包括源树与共享树、数据流合并、数据流的扩散和删减、单向共享树和双向共享树等。
4) caterpillar
[英]['kætəpɪlə(r)] [美]['kætɚ'pɪlɚ]
毛虫树
1.
A Sufficient Condition for Equitable Coloring of Caterpillars;
毛虫树可均匀k-着色的一个充分条件(英文)
2.
A sufficient and necessary condition for equitable k-coloring of caterpillars;
毛虫树可均匀k-着色的一个充要条件
3.
For the conjecture: all trees of odd order are super edge-graceful,caterpillars were proved having super edge-graceful labelings in some conditions,and a method was introduced that would structure the super edge-graceful labelings of caterpillars.
基于所有奇数阶的树都是超边优美的猜想,验证了在一些条件下,毛虫树是超边优美的,并设计了一种可构造毛虫树超边优美标号的方法。
5) Caterpillars
[英]['kætə,pilə] [美]['kætɚ,pɪlɚ]
毛虫树
1.
In this paper,we obtain a quality of caterpillars and an explicit formula for the equitable chromatic number of caterpillars.
可得到毛虫树的一个性质和计算毛虫树的均匀色数的一个精确计算公式。
2.
The bandwidth problem for a class of caterpillars E m,n which is obtained by attaching a path P m at each vertex of a path P n is studied.
利用Ｃｈｖáｔａｌ的直径型带宽下界为工具，确定出等高单毛虫树Ｅｍ，ｎ的带宽值如下：Ｂ（Ｅｍ，ｎ）＝「φ（ｍ，ｎ），ｍ，ｎ≥２，其中φ（ｍ，ｎ）＝（ｎ２＋ｍ－１）－（ｎ２＋ｍ－１）２－（ｍｎ－１）。
补充资料：柚树咋个防治病虫？
| |