幼虫的
例句与用法
- In areas where malaria vector mosquitoes are detected but with a low population , mosquito larvae eating fishes are released to abate mosquito breeding
在人口较少的地区，假如发现有传播疟疾的蚊子，本署便会投放专吃蚊子幼虫的鱼类，以遏止蚊子滋生。 - In areas where malaria vector mosquitoes are detected but with a low population , mosquito larvae eating fishes are released to abate mosquito breeding
在人口较少的地区，假如发现有传播疟疾的蚊子，本署便会投放专吃蚊子幼虫的鱼类，以遏止蚊子滋生。 - The study indicates that mitochondrial dna sequence analysis is a useful tool to associate the larval and adult stages of trichoptera , in turn , it will be valuable for health assessment of stream ecosystems
根据原双栖纹石蛾成幼虫的pcr反应电泳图谱、序列同源性和酶切图谱的一致性，基本确认了其成幼虫联系。 - During the mysis substages there is a gradual transition from phytoplankton to zooplankton . feed on : diatoms , animalcule such as a . salina , oyster eggs and larvae as well as on rotifers and nematodes
1在糠虾期幼虫的蜕变中，渐渐从摄食植物浮游生物转变到动物浮游生物。饵料：藻类微生物如丰年虾牡蛎卵轮虫丝虫类动物。 - The properties of expressing cry1ac and crylca in bmb171 was also studied by quantifying the expression level and determining the toxicity of the relevant transformants again st two lepidopteran larvae
对小菜蛾3龄幼虫和甜菜夜蛾初孵幼虫的毒力测定结果表明， bmb171表达cry1ac基因的杀虫毒力高于bt - 4q7和bt - 4d10 ，略低于bti - There are also desert insects which survive as inactive larvae . in addition , difficult as it is to believe , there are desert fish which can survive through years of drought in the form of inactive eggs
在沙漠的环境中，也有些昆虫以不活动幼虫的状态存活。而令人难以置信的是，有些沙漠水生动物，它们的卵能在干旱时存活多年。 - For example , the larval body length and morphological characteristics of most necrophagous flies is difficult to be discerned as larvae are at the post - feeding stage , easily resulting in the determination of pmi
但这些指标有时难以真实反映昆虫所处的生长发育阶段，如蝇类离食期幼虫的体长和形态变化均不明显，易造成推断误差。 - The toxicity of 5 % chlorfluazuron , 4 . 5 % beta - cypemethrin and the different mixtures of 5 % chlorfluazuron and 4 . 5 % beta - cypemethrin to plutella xylostella larvae was determined by leaf immersion method under laboratory condition
摘要采用浸叶法在室内条件下测定5 %定虫隆、 4 . 5 %高效氯氰菊酯单剂以及不同配比混剂对小菜蛾幼虫的毒力。