| 释义 |
ladybirds 英'leɪdɪbɜːdz美'leɪdɪbɜːdz COCA¹⁶²⁴²³BNC⁵²⁶⁸⁵
基本英英例句
瓢甲科¹⁰⁰原型ladybird的复数
名词 ladybird:
small round bright-colored and spotted beetle that usually feeds on aphids and other insect pests And in Chard in Somerset around10 million ladybirds have descended on farmland and set up home.
在萨默塞特郡查得农场大约1000万只七星瓢虫出现在农田里并“安营扎寨”。 hjenglish
The coccidophagous species of ladybirds play important roles in the regulation the population of scale insects.
食蚧瓢虫在蚊虫生物防治中具有很重要的作用。 dictall
The daily maximum number of scales preyed theoretically by the adult ladybirds was51.57. The searching efficiency decreased with the increase of predator density.
黑缘红瓢虫对扁平球坚蚧具有较强的捕食能力，日最大捕食量为51.57头。 cnki
The daily maximum number of aphid preyed theoretically by the female and male adult ladybirds were87.3 and 93.4 aphids respectively.
龟纹瓢虫对玉米蚜具有较强的捕食能力，雌成虫日最大捕食量为87.3头，雄成虫为93.4头。 cnki
Among the functional groups of natural enemies, ladybirds had a stronger ability of recovery, while spiders and parasitoids were weaker.
在天敌功能团中，瓢虫类恢复能力较强，蜘蛛类与寄生性天敌类较弱。 cnki
As a child I would wander off alone whenever I got the chance, to find a patch of moss to sit on and spend the afternoon watching ladybirds and picking flowers to press.
小时候，只要一有机会，我就单独走开，找一小片苔藓，坐在上面；一整个下午观看螵虫，或者摘下花儿，把它揉碎。 yeeyan
Numerical cladistic method was used for analyzing the phylogeny of ladybirds, based upon adult and larval characters.
根据成虫和幼虫的特征，应用数值支序方法探讨瓢虫科的系统发育。 cnki
Predacious natural enemies included ladybirds, lacewings, predacious bugs, rove beetle and spiders, but populations were low and lagged behind the population peaks of insect pests.
捕食性天敌主要有瓢虫、草蛉、食虫蝽、隐翅虫和蜘蛛，但是发生数量低、数量高峰明显滞后于害虫数量高峰。 cnki
The barge used one- tenth as much water as a comparable field farm. There was no agricultural run- off, and chemical pesticides were replaced with natural predators such as ladybirds.
开普罗介绍说，驳船上的用水只有普通田地的十分之一，也没有农业径流，使用生物天敌防治像瓢虫这样的温室蔬菜害虫而不是化学农药。 yeeyan
There was no agricultural run- off, and chemical pesticides were replaced with natural predators such as ladybirds.
这里没有常规农业的地面水流损耗现象，化学杀虫剂被替换成自然界的肉食昆虫，像瓢虫。 ecocn.org
Ladybirds can exude a drop of poison from their leg joints. A yellow fluid.
瓢虫的腿关节能分泌出黄色的毒汁。 zftrans |