1) Species of flies
蝇种构成
2) Onion fly
种蝇
1.
<Abstrcat> Onion fly in Datong and its neighbouring area has three generations in a year and it overwinters in form of pupa.
大同及周边地区洋葱种蝇一年发生3代,以蛹越冬,5月初成虫始见,10月中下旬结束。
3) species composition
物种构成
1.
Based on the species composition of lake ecosystem,a weighting method of the growth rate of phytoplankton(algae)-weighted growth rate is presented in this paper.
基于湖泊生态系统的物种构成，本文提出了一种浮游植物（藻类）生长率的加权计算方法──加权生长率法。
4) population composition
种群构成
1.
Investigation on population composition of rat-shaped animals and its parasitic fleas at seven ports in Heilongjiang province;
黑龙江七口岸鼠形动物及寄生蚤种群构成的调查
6) species forming
种群构成
1.
Objective To know the species forming of mosquitoes and their season growth and decay in Zhenjiang,and to provide scientific basis for preventing mosquitoes effectively.
目的了解镇江市蚊类种群构成及季节消长情况,为有效控制蚊虫提供科学依据。
2.
Objective To investigate the species forming of mesquitoes and their ecological distribution in Baoji city,and to provide scientific basis for preventing mosquitoes effectively.
目的调查宝鸡市蚊类种群构成及生态习性,为有效控制蚊虫提供科学依据。
补充资料：蝇蝇
1.虫行貌。
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