查询词典 fleas

Any of various water fleas of the genus Daphnia, some species of which are commonly used as food for aquarium fish.

水蚤水蚤科中的一种水蚤属水生跳蚤，其中的一些种类通常用作水族馆鱼类的食物

"Daphnia:any of various water fleas of the genus Daphnia, some species of which are commonly used as food for aquarium fish."

&水蚤：水蚤科中的一种水蚤属水生跳蚤，其中的一些种类通常用作水族馆鱼类的食物。&

Fleas are distinctive blood-sucking insects, highly specialized for their ectoparasitic life on warm-blooded hosts.

跳蚤 &跳蚤&是营寄生牲生物。主要寄生在哺乳动物、家禽甚至在人类身上生活和吸血。它们能使人和动物之间互相传播病菌。

The composition and the faunal distribution of fleas are chiefly determined by their host animals and the zoogeographical distribution of the latter is in turn determined by vegetation climate and landscape as well as other geographical factors such as latitude and elevation.

蚤类的组成及区系分布主要决定于它们的宿主动物，而后者的动物地理分布又依次取决于植被、气候、景观及其他地理因素如纬度、海拔高度等。

Non-parametric Mann-Whitney U -test showed that there was no significant difference between male and female hosts on the species richness and abundance of total ectoparasites, chigger mites, sucking lice, fleas or gamasid mites.

U 检验表明，体表寄生虫、恙螨、吸虱、蚤类和革螨的数量和物种数在雌雄宿主体表间的差异无统计学意义。

Walchia ewingi Fuller（66.2%）, Laelaps turkestanicus Lange（38.5%）, Paradoxopsyllus custodies Jordan（42.9%）and Hoplopleura pacifica （80.1%）were the most predominant species of chigger mites, gamasid mites, fleas, and sucking lice, respectively.

攸氏无前恙螨为优势恙螨种，占恙螨总数的66.2%(710/1 072)；土尔克厉螨为优势革螨种，占革螨总数的38.5%（396/1 029）；绒鼠怪蚤为优势蚤种，占蚤总数的42.9%（9/21）；太平洋甲胁虱为优势吸虱种，占吸虱总数的80.1%（217/271）。

Another method of killing fleas is by using insecticidal on the organic matter accumulated outside the house.

另一种方法杀死跳蚤是使用杀虫对有机质积累了屋外。

REPORTER B: To treat jiggers, the fleas should be removed using a sterile needle and an antibiotic applied to the skin.

记者B：要治疗沙蚤，要使用消毒针和抗菌仪器来清除这些跳蚤。

CLAUDIA HAMMOND: I'm Claudia Hammond and coming up later on the BBC's health check jiggers or sand fleas the insects which really get under your skin.

克劳迪娅·哈蒙德：我是克劳迪娅·哈蒙德。一会我们将在BBC《健康咨询》节目上讨论如何防范沙滩跳蚤——这种昆虫会潜藏在人体的皮肤下。

Marmota will not take the initiative and who is close to the animals and their parasitic fleas not active, and very little liquid bites people.

旱獭是不会主动与人接近的动物，其寄生的跳蚤也不活跃，很少叮咬人液。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。