查询词典 fish pond

Through the simulate experiment, the studies on the eeffects of decomposition of the bait in a shrimp-pond on the water quality, changes of the water quality after the replacement of the seawater and after the removal of the remain bait coved the pond-bottom were done.

通过室内模拟实验，研究了虾塘底层残饵腐解对虾池水质的影响和更换虾池海水后底层水质质量的变化和清除覆盖于池底的残饵后池底底层水质的变化。

If you want your pond to be a home to Koi or goldfish, design a slightly larger pond than you think you will need.

如果你希望你成为一个池塘的锦鲤或金鱼的家，设计一个稍大的池塘比你认为你会需要。

The water quality was more stability when the dominant species was mainly Oocystis borgei in it. Ammonia nitrogen and nitrite nitrogen in the experiment pond was lower than that of the control pond.

波吉卵囊藻为主的微藻群落控制的水质较稳定，实验池氨氮和亚硝酸盐氮浓度较对照池低。

Bacterial diversity of sediment in shrimp pond was analyzed by using PCR-DGGE technique, the Shannon-wiener index is 3.4971, the Richness is 41 and the Evenness is 0.94171; 17 dominant bands were excised from DGGE profile of surface sediment bacteria in shrimp pond and the V3 region of 16S rRNA gene was cloned and sequenced followed by phylogenetical analysis.

对虾池表层沉积物细菌多样性进行分析，得出该沉积环境细菌多样性指数为3.4971，丰度为41，均匀度指数为0.94171；对DGGE图谱上的特征条带进行切割回收和克隆测序后得到了优势菌的信息。

The results showed that the value of the district was the highest, which is 2.6 × 10^7 yuan RMB, when the areas of the ecosystem and prawn pond are 25.4 km^2 and 9.6 km^2 respectively. And that is recommended that ideal Spartina alterniflora/ pond ratios should not exceed 27% of the ecosystem area converted to ponds.

研究结果里示，当互花来草盐沼生态系统面积为25.4平方公里、对虾养殖面积为9.6平方公里，即对互花米草盐沼生态系统的开发面积不超过其总面积的27%时，可实现该区域资源价值的最大化，其评估值最高，为2 626.7万元。

And DO level only at 2.9 mg/L in walking catfish's grow-up ponds. The chlorophyll a in sweetfish pond and walking catfish pond were 3.43 and 170.43 mg/ m3, respectively.

香鱼养殖池的溶氧都在5 mg/L以上，胡鲇养殖池溶氧平均值为2.9 mg/L，两个养殖池的叶绿素a平均值分别为3.43和170.23 mg/ m3。

To compare the difference of drain and intake water then converse with biomass in sweetfish and walking catfish's grow-up pond. The ammonia-N, nitrate-N, nitrite-N and phosphate were 383.7, 208.99, 21.62 and 119.03 mg/kg in sweetfish's pond, respectively.

水中营养盐部分香鱼与胡鲇池换算流水量与生物量后，香鱼每增长1 kg，它所产生之氨氮、硝酸氮、亚硝酸氮及正磷酸酸盐的量分别为383.7、208.99、21.62和119.03 mg；胡鲇每增长1 kg则分别为68.76、5.72、2.44及13.80 mg。

After it introduced the zymotechnics biology hydrogen technology technical process which was instructed under the ethyl alcohol fermentation biological hydrogen theory, it also elaborated the biological hydrogen water treatment automatic control system structure drawing and the control plan. It has carried on the detailed introduction to the lowest level entire production control process. It is including the mix regulating reservoir automatic control return route, the biological system hydrogen reactor temperature, the PH value control loop, the tired of the oxygen reactor temperature, the PH value control loop, need oxygen response pond control loop, sedimentation pond control loop, the biological hydrogen examination return route and so on..

在介绍了乙醇型发酵生物制氢理论指导下的发酵法生物制氢技术的工艺流程之后，又论述了生物制氢水处理自动控制系统的结构图和控制方案，并且对最底层的整个生产控制过程进行了详细介绍，包括了混合调节池自动控制回路，生物制氢反应器的温度、PH值控制回路，厌氧反应器温度、PH值控制回路，好氧反应池控制回路，沉淀池控制回路，生物制氢间氢气检测回路等等。

The First Step is to put the preformed pond liner upside down in the location where you want your pond and then mark around the edge and peg out with string or hose pipe.

第一步是把预制池塘衬垫颠倒中的位置，您希望您的池子，然后马克围绕优势和挂出弦乐或软管管道。

The results showed that the ammonifying rate, nitrifying rate, nitrosifying rate and denitrifying rate of bacteria in pond silt were significantly affected by the biomass and population composition of bacteria, physio-chmical characteristics of pond silt and water quality.

结果表明：淤泥中细菌的氨化率、亚硝化率、硝化率和反硝化率在很大程度上受淤泥中有机物的含量、细菌数量和种群组成、淤泥的理化性质及水质情况的影响。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。