英语释义

• minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae

片语

Daphnia hyaline透明溞

Daphnia cristata小栉溞

FD Daphnia冻干鱼虫

Daphnia pluex蚤状蚤

dried daphnia鱼虫子

Daphnia longispina长刺溞

Daphnia magna大型溞

Daphnia carinata隆线溞

Daphnia hyalina透明蚤

英汉例句

• the certain concentrations of fipronil approaching the lc50 can negatively affect population parameters of daphnia pulex.

  氟虫腈在水中的质量浓度达到lc50时对大型蚤的种群有影响。

• this article introduced the progress and views of applying daphnia magna to research work.

  通过文献调研综述了国内外大型水（氵蚤）生物测试技术的应用研究动态及发展趋势。

• this contributes to further differentiate closely related daphnia species and is likely to be an example of allotropic speciation in aquatic systems;

  这有助于进一步区别近缘的水蚤种类，这也可能是一个水环境中同素异形的物种形成的例子；

• in the 48h-exposure, there was a sudden increase of daphnia magna behavior strength, and then decreased gradually.

  在一定浓度的农药暴露中，暴露生物的行为强度在经历一个短暂的突增后，会随暴露时间增加而逐步减弱。

• goss studied daphnia magna, a tiny freshwater crustacean used in many aquatic toxicity studies.

  戈斯以水蚤（daphnia magna）——一种微小的淡水甲壳类昆虫——为研究对象。 该类昆虫过去常被用于各类水生生物毒性研究中。

• the pesticide was low in toxicity or nearly non-toxic to daphnia magna.

  叶青双对水蚤属低毒或近似无毒农药。

• the acute and chronic toxicities of benzidine to daphnia magna were studied.

  研究了联苯胺对大型溞的急性毒性和慢性毒性。

• daphnia magna reproduction rate increased with the decline in toxic concentration;

  大型溞的产溞率是随毒物浓度的增加而下降；

• research on the removal efficiency of daphnia in water supply;

  探讨了沉淀—过滤工艺对水蚤的去除效能。

• this is important not only because it means that global warming could alter the ecotoxicity of lead, but also because daphnia experiments are customarily done at a single temperature in each study.

  这一发现至关重要，不仅仅因为它证明了全球变暖将会导致铅金属毒性的改变；同时它还提出了一个观点，即传统的实验规程是否应根据温度的升高进行相应的改变？

• toxic m. aeruginosa pcc7820 not only decreased the survival rate and population increase rate but also delayed maturation of daphnia pulex.

  大型枝角类蚤状溞的滤食实验结果表明，有毒微囊藻pcc7820可降低蚤状溞的存活率、种群增长率和个体生长速度。

• the results show that:①imidacloprid is safety on daphnia and fish, ②the toxicity of imidacloprid on silkworm and shrimp is high, ③ the toxicity of imidacloprid on bee is very high.

  结果表明，吡虫啉对蚤类和鱼类是安全的，但对家蚕和虾类属高毒农药，对蜜蜂的毒性极高。

• the removal efficiency of daphnia with sedimentation/filtration process is discussed.

  探讨了沉淀—过滤工艺对水蚤的去除效能。

• the daphnia magna of the two population has obvious around-the clock ingestion rhythm, the morning and the evening are two peaks of ingestion. salinity has no influence on the ingestion rhythm.

  二个种群的大型溞具有明显的昼夜摄食节律，早晨和傍晚为两个摄食高峰期，盐度对摄食节律无影响。

• daphnia has a large number of never-before seen genes, as well as a big chunk of the same genes found in humans, the most of any insects or crustacean so far known to scientists.

  水蚤有大量之前从未见过的基因，也有一大堆在人类身上就发现的相同基因，其数量是至今科学家所知的昆虫或甲壳类生物中最多的。

• daphnia magna could respond even if the concentration of pesticide was in microgramme, .

  结果大型水蚤能够灵敏检测饮用水农药污染，在浓度达到微克时，仍然有反应；

• as the key part of the natural water food chain, the daphnia magna is very sensitive to pesticides and listed as the essential non-target organism in the pesticide registration.

  大型蚤是水体生态系统中对农药十分敏感的生物，被世界各国列为农药登记中必测非靶标生物之一。

• the reproduction studies of difficult substance 3,4-dichloroaniline on daphnia magna were performed with semi-static and continuous-flow system.

  分别采用持续流水式系统和半静态系统为暴露途径，比较研究难溶化学品3，4-二氯苯胺对大型蚤繁殖影响的差异。

• a series of experiments were performed in different populations and species of daphnia to investigate: 1) genetic and environmental controls of sr and revival of diapausing eggs;

  在一系列实验中用到了不同种群和种类的水蚤，通过这些实验来观察：1）有性生殖和滞育卵复苏的遗传和环境控制；

• flumorph and syp-48 all can restrain later development phase of daphnia magma「s embryo, such as larval curved or unextended shell spine, undeveloped antennae.

  氟吗啉与syp-48 相似，主要是在高浓度影响胚胎发育后期-幼蚤壳刺弯曲或者发育不完全，第二触角的发育也受到抑制；

• it」s also proved that copper complexes are bioavailable to daphnia magna. moreover, the bioavailability of copper complexed with humic acid is more than that with edta under the same concentrations.

  有机络合态的铜也能为大型水蚤所吸收和利用，在相同浓度条件下大型水蚤对腐殖酸络合态铜的利用大于edta络合态铜。

• the essay reported the testing method and results of toxicity research of the pesticide to a water flea, daphnia magna.

  本文报道了新杀菌剂叶青双对水蚤毒性的测定方法和结果。