breadth index

1. In spring soybean fields: the niche breadth index of hover flies ( 0.8419) and the niche overlap index of parasitic wasps to hover flies and the niche similarity index of hover flies to parasitic wasps ( 0.8127) were the highest among the insect enemies, respectively.
   生态位重叠指数以寄生蜂类对食蚜蝇类最高（0.1017）；生态位相似性比例指数以食蚜蝇类对寄生蜂类最高（0.8127）。
2. In order to improve response speed and transmission bands 'breadth of motion control system and to obtain its higher index of compositive capability, we must optimize, design and emend the system.
   为了提高平移运动伺服控制系统的响应速度和通频带宽，获得良好的系统综合性能指标，就必须对系统进行优化校正设计。
3. Adopting Shannon-Wiener, the niche breadth index, the article classified constructive species on both slopes into 3 ecologic groups respectively.
   本文采用Shannon-Wiener生态位宽度指数将南北坡群落的建群种群分别划分为3个生态类群。
4. The niche breadth index of insect population on BT cotton was higher than that on common cotton.
   33B棉田各昆虫种群的生态位宽度指数偏高；
5. The index of temporal niche breadth or overlap index of spiders in the late rice field is bigger than that of the spiders in the early rice field. Time is
   晚稻田蛛虫的时间生态位宽度及蛛虫的时间生态位重叠指数均大于早稻田蛛虫的时间生态位宽度和生态位重叠指数
6. According to the niche breadth index, wetland plants can be classified into four groups.
   根据生态位宽度指数将湿地植物分为4个生态类群。
7. The main pest and natural enemy in the middle-later period of the wheat field with time niche breadth and the niche overlap index in Huixian municipality have been studied.
   通过对辉县市麦田中后期主要害虫及天敌自然种群数量的调查，并运用时间生态位宽度和生态位重叠指数进行了分析研究。
8. This article describe the Breadth of Signal Surge ( BSS) with Surging Synthetic Index ( SSI), the denoising effect with Relative Square Error ( RSE), in effort to state the relationships between signal waveform and denoising effect.
   用综合振荡指数功述信号振荡程度，用均方相对误差描述消噪效果，试图揭示信号波形与消噪效果的关系。
9. Results The breadth between bilateral angle of mandible are related to all various of index sign.
   结果下颌角间宽与其各项指标均呈正相关。
10. With the continuous increase of the depth and breadth of the stock index futures market, the operation of the market mechanism continues to mature, short-term psychological impact of this based on changes in trading patterns, as well as emerging things gradually disappear.
    随着股指期货市场深度和广度的不断加大，市场运行机制的不断成熟，这种基于交易模式转变以及新兴事物所带来的心理上的短期冲击逐渐消失。
11. The impact on the flow coefficient order of hydraulic radius, cross-sectional area, breadth depth ratio and wetted perimeter; hydraulic radius is the most important factor affecting flow index, followed by breadth depth ratio, cross-sectional area and wetted perimeter.
    对流量系数k影响最大的流道断面因素依次是水力半径、截面面积、宽深比和湿周，对流态指数x影响最大的流道断面因素依次是水力半径、宽深比、截面面积和湿周。
12. Species with little amount and narrow niche breadth only had smaller ecological accommodation, they had little chance to overlap, so their niche overlap index was low.
    而数量较少、生态位宽度窄的物种生态适应范围较小，相互间重叠机会小，所以生态位重叠值较小。

noun

1. ratio (in percent) of the maximum breadth to the maximum length of a skull

   Synonym:    cephalic indexcranial index