1) torpedo directivity figure
鱼雷指向性图
2) directivity pattern
指向性图案
3) torpedo gyro angle
鱼雷转向角
6) Breteau index
布雷图指数
1.
Methods The species and breeding characters of vectors were investigated in September,2004,the density of the larva was calculated by Breteau index,thousand-person index and container index.
方法于媒介密度高峰期9月份调查机场及其周围环境蚊虫种类与孳生习性,机场候机大楼等公共场所以千人指数、容器指数,其他场所主要应用布雷图指数、房屋指数和容器指数计算幼虫密度,以刺叮率(只/人工小时)计算成蚊密度。
2.
White and yellow-fever mosquitoes were caught to isolate dengue viruses,and Breteau Index of the media was evaluated.
方法 采集各区、县正常人群血清检测登革热抗体 ;捕捉白纹伊蚊分离登革病毒 ;调查媒介白纹伊蚊布雷图指数。
3.
Methods The species and breeding of vector were investigated and the density was caculated by Breteau index in 2001.
方法 调查武夷山机场及其毗邻居民村、度假区等环境媒介种类与滋生习性 ,以布雷图指数计算幼虫种群密度。
补充资料：产业的指向性
产业的最优区位应在各点区位因素引力的合力方向上（或引力最大的方向上）称为产业的指向性。
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