频率分辨光学快门的理论研究和LD泵浦CrLiSA蓝光激光器的研究激光,LD,泵浦,激光..
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频率分辨光学快门的理论研究和LD泵浦CrLiSA蓝光激光器的研究
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It was demonstrated that LC50 of Cu2+on tadpole were 0.201, 0.138 and 0.118 mg·L-1 for 24 h、48 h and 96 h, while that of Hg2+ were 0.135, 0.112 and 0.103 mg·L-1 for 24 h、48 h and 96 h, respectively.
Cu2+对泽蛙蝌蚪的24h、48h、96h的半致死浓度分别为0.201、0.138和0.118mg·L-1Hg2+对泽蛙蝌蚪的24h、48h、96h的LC50分别为0.135、0.112和0.103mg·L-1。
The 96h LC50 of Na_2SeO_4 and Na_2SeO_3 to 29~30 tadpole of Rana nigromaculata are94.8mg/L and 33.5mg/L.
Na_2SeO_4和Na_2SeO_3对黑斑蛙29~30蝌蚪的96h半致死浓度为94.8mg/L和33.5mg/L。
The result showed that LC50 of Cu2+ to tadpole were 0.201, 0,138 and 0.138mg/L in 24h, 48h and 96h respectively.
结果表明,Cu2+对蝌蚪的24h、48h、96h的LC50分别为0.201、0.138和0.118mg/L;
TADPOLE DIAGRAM, △1=1/2 ENHANCEMENT ANDs'/s
蝌蚪图、△I=1/2增强及ε′/ε
The synergetic toxicity of Cu2+ and Cd2+ to tadpole in 24h, 48h and 96h addictive index were 1.03, 1.02 and 1.20 in 24h, 48h and 96h respectively.
Cu2+和Cd2+共存对蝌蚪的24h、48h和96h联合毒性相加指数(AI)分别为1.03、1.12和1.20。
Under the test condition of water temperature 24~25℃, the 24h LC50、48h LC50、72h LC50 and 96h LC50 of dichlorvos on the tadpoles were 9.104, 8.064, 6.304, 5.680mg/L,
结果表明,在水温24~25℃条件下,敌敌畏对沼蛙蝌蚪的24,48,72,96h半致死浓度(LC50)分别为9.104,8.064,6.304,5.680mg/L;
The results showed that 24、48、72、96 h toxic tropic equations between mortality and Log of Cu~(2+) concentration on tadpoles were y = 3.2060x - 2.6861, y = 4.8309x - 5.4046, y = 6.5617x - 8.5699 and y = 6.6910x - 8.4263 respectively.
结果表明,在水温21～24℃条件下,Cu2+对日本林蛙蝌蚪的24、48、72、96h毒性死亡几率与浓度对数的回归方程分别为y=3.1,y=4.6,y=6.9和y=6.3;
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;
The cute toxicity experiment of Na_2SeO_4 and Na_2SeO_3 to Rana nigromaculata tadpoles.
Na_2SeO_4和Na_2SeO_3对黑斑蛙蝌蚪急性毒性实验。
and those of butachlor on the tadpoles were 1.400, 0.860, 0.795, 0.735mg/L, respectively.
丁草胺对沼蛙蝌蚪的24,48,72,96h半致死浓度(LC50)分别为1.400,0.860,0.795,0.735mg/L.
The Changes of Con A Receptors in Toad Tadpole Paranecrotic Skin during the Recovery of Paranecrosis
中华大蟾蜍蝌蚪发生类坏死的皮肤在恢复过程中Con A受体的变化研究
The movements and responses of the toad tadpoles were detected and took notes. The result showed that the LC50of Cd2+to toad tadpole is 1.633mg·L-1,1.202mg·L-1and 1.089mg·L-1in 12h, 24h, and 48h, respectively.
结果表明:Cd2+处理蝌蚪12h、24h、48h的LC50分别为1.633mg·L-1、1.202mg·L-1、1.089mg·L-1;
The mortality of toad tadpole increased as the mass consistency of Cd2+raised in the same time, and also as the time prolonged under the same mass consistency of Cd2+.
在同一时间内随着Cd2+浓度的升高,蝌蚪的死亡率逐渐升高,而在同一Cd2+浓度下随时间的延长蝌蚪死亡率也逐渐升高;
Acute Toxicity of Cadmium on Toad Tadpole(Bufo bufo)
镉对中华蟾蜍蝌蚪毒性的研究
There are 6kinks of loop bedding,such as smooth polliwog shape,horsetail or pinch-and-swell loop,associated with syn-sedimentary microfracture,catenarian loop bedding group,spindle loop bedding group and loop bedding with a slungshot as core in the studied area.
研究结果表明,济阳坳陷古近纪软沉积物变形层中的环状层理类型多样,形态复杂,计有光滑圆环状及蝌蚪状带“小尾巴”的环状层理、马尾丝或串珠状不规则环圈的环状层理、与阶梯状微断裂伴生的环状层理、链条状环状层理群、纺锤型环状层理群和中心为“飞石”环圈较光滑的环状层理等6种。
查询“蝌蚪”译词为用户自定义的双语例句&&&&我想查看译文中含有：的双语例句
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Some representatives of this genus evolved from development with a tailed larva (tadpole) to direct development associated with the loss of larval structures, such as tail, notochord, sensory organs, and differentiated muscles.
An effective Lagrangian that includes a scalar color-singlet field interacting with quarks is derived, and the relevant generating functional is estimated in the tadpole approximation.
When the fertilized eggs were maintained under 10, 15, 20, 25 °C, they hatched within 30 h, 22 h, 16 h and 12 h 50 min respectively experiencing cleavage, blastulation, gastrulation, neurulation, tailbud stage and tadpole stage.
The tadpole larvae were characterized as typical but simplified chordates because of their dorsal nerve cord, notochord and primordial brain.
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Tadpoles of the grass frog (Rana temporaria) and moor frog (Rana arvalis) avoid zones with elevated ammonia concentration
The appearance of dendritic cells coincided in time with the beginning of metamorphosis of the tadpoles and their number increased by the end of metamorphosis.
Anomalies of mouthparts in Rana arvalis Nilss tadpoles and ecological conditions providing for their emergence
Rana arvalis tadpoles reared under natural or experimental conditions have been studied to analyze anomalies in the development of mouthparts and to compile a catalog of corresponding characters.
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Frog Crafts
These crafts projects are for preschool, kindergarten and elementary school children.
The crafts use materials found around the house, like egg cartons, cardboard, paper, boxes, string, crayons, paint, glue, etc.
to see how to combine paint to make all the colors of the rainbow.
Click on any of the crafts to go to the instructions.
A great card for a birthday.
Make a frog that really jumps!
Then you can have a frog jumping contest.
An easy way to make a frog or other animal puppet.
A simple-to-make frog puppet made from a piece of paper.
This puppet's mouth moves!
Related Activities and Printouts:
A short printable shape book for early readers about the life cycle of a frog, with pages on the eggs, tadpole, tadpole with legs, froglet, and adult frog.
A printout on the letter F, picturing a fire engine, frog, flamingo, and flower.
Tadpoles grow up to be frogs.
Label a diagram of the frog's life cycle.
Color the picture and answer the questions about the amazing life cycle of this amphibian.
Poison arrow or poison dart frogs are poisonous frogs from rainforests of South and Central America.
Some South American Indians apply the poison to the tips of their hunting arrows and blow-gun darts.
A rainforest frog with bright red eyes.
A very small treefrog that makes a peeping sound.
Toads are amphibians with poison glands and usually warty skin.
Frog Quizzes/Activities:
Color the picture and answer the questions about the amazing life cycle of this amphibian.
A word scavenger hunt about the life cycle of the frog to use with the picture dictionary, .
Cut out the four scenes and arrange them so they show the life cycle of the frog from egg to tadpole to adult.
Label the egg, tadpole, and frog in Spanish.
Label the egg, tadpole, and frog in French.
Label the egg, tadpole, and frog in German.
Label the egg, tadpole, and frog in Italian.
Frog and Toad Information:
Fill in the blanks (using a word bank) about the life cycle of frogs.
Make a Venn diagram showing the similarities and differences between frogs and toads.
Read about frogs and toads, or go to printouts on these amphibians.
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