查询词典 tadpoles

In recent years, many toxicology studies have been carried out with anuran tadpoles in China, since they are believed to be perfect indicator species for aquatic pollution.

中文摘要：无尾两栖类的幼体蝌蚪是很好的水体污染指示物种，近年来，国内这方面的研究也越来越多。

If you want to take care of tadpoles, you should keep them in an aquarium.

如果你想照顾蝌蚪，你应该让他们在一个水族馆。

In this paper, the acute toxicity of 20 substituted aromatics to tadpoles is determined with static methods.

以蝌蚪为模型生物，测定了部分取代芳烃类化合物在静态实验系统中的24h急性毒性效应。

The results indicate : The median lethal concentrations to the tadpoles are 13.24 mg/L in 15 ℃ and 9.85 mg/L in 20 ℃ respectively,and the confidence limit of 95% is 12.30～14.24 and 9.18～10.57 mg/L respectively.

结果表明：在15℃和20℃条件下，三氯杀螨醇对蝌蚪的LC50分别为13.24 mg/L和9.85 mg/L，其95%可信限范围分别为12.30~14.24 mg/L和9.18~10.57 mg/L

Algae, higher plants, and detritus compose the main food of the tadpoles.

藻类，高等植物和碎屑撰写的主要食物的蝌蚪。

He had besides the things before mentioned, twelve marbles, part of a jews-harp, a piece of blue bottle-glass to look through, a spool cannon, a key that wouldn't unlock anything, a fragment of chalk, a glass stopper of a decanter, a tin soldier, a couple of tadpoles, six fire-crackers, a kitten with only one eye, a brass door-knob, a dog-collar-but no dog-the handle of a knife, four pieces of orange-peel, and a dilapidated old window sash.

除了以上提到的那些玩意以外，还有十二颗石头子；一只破口琴；一块可以透视的蓝玻璃片；一门线轴做的大炮；一把什么锁也不开的钥匙；一截粉笔；一个大酒瓶塞子；一个锡皮做的小兵；一对蝌蚪；六个鞭炮；一只独眼小猫；一个门上的铜把手；一根拴狗的颈圈——却没有狗——一个刀把；四片桔子皮；还有一个破旧的窗框。

It was great fun to plunge my hand into the bowl and feel the tadpoles frisk about, and to let them slip and slide between my fingers.

我把手指放进水里，第一次摸到蝌蚪，让它们在我的手指间自由自在地游动，非常有趣。

A study by researchers at the university found that at low levels comparable to those measured in the Canadian environment, fewer tadpoles reached the froglet stage and the ratio of females to males increased.

从渥太华大学的研究人员所做的一项研究中可以发现，与在加拿大的生态环境中生长的青蛙相比，本地青蛙可比性较低，更少的蝌蚪发育成青蛙，雌性青蛙与雄性青蛙的比率也上升了。

A mesocosm experiment demonstrated that, relative to control tanks, atrazine tanks had immunosuppressed tadpoles, had significantly more attached algae and snails, and had tadpoles with elevated trematode loads, further supporting a causal relationship between atrazine and elevated trematode infections in amphibians.

在关于吸虫感染的超过240种可靠的预测因素（这些因素从各种不同植物和动物物种的存在到农用化学药品和生境地理因素都包括在内）中，两个因素比较突出："莠去津"除草剂和"磷酸盐"化肥。

Dichlorvos to the 25, 26 and 35 period tadpoles is of medium toxicity, while it is highly toxic to the 42 period tadpoles.

由此得出敌敌畏对25期、26期和35期蝌蚪属中等毒性，对42期蝌蚪则表现为高毒。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。