藻类的

Chlorococcales An order of Chlorophyta that contains singlecelled and colonial algae that lack undulipodia, e. g. Chlorella, Volvox, found in freshwater plankton and most terrestrial habitats.

色球藻目：绿藻门中的一目包含单细胞和群居的藻类，它们都缺乏波动足，例如小球藻 Chlorella 和团藻 Volvox ，在淡水中的浮游生物和大多数的陆地上栖息。

The highest value was found in Gracilaria conferuoides for Fe enrichment with bioaccumulation coefficient at 204875.29, followed by Nemacysti decipientis for Hg at 13800.00; and the least one was Cladophora sp. for Se at only 3.48. No individual alga had strong accumulation of every heavy metal.

各藻类对各重金属的富集系数从几倍至几十万倍不等，最高是细江蓠对Fe 的富集，其次为海蕴对Hg 的富集，最差为刚毛藻对Se 的富集，其富集系数分别为204875.29、13800.00、3.48。

The filaceous algae with bigger body could be damaged moreeffectively than spherical ones with smaller body in both growth inhibition and cellremoval.

不同藻类细胞中的气囊及藻体尺寸不同，谐振频率存在差异，因此最佳的超声频率不同；随声强的提高，溶液中的空化强度会随之增长并趋向饱和，抑藻和除藻的效果也趋向饱和。

These are main problems of eutrophication.In this paper we selected alga that suits to grow under different concentration of nutrition, after selecting seed, domesticating, culturing alga purely in the lab, we gained Hydrodictyon reticulatum and microalga, most of which are Miorocystis and chlorella.

本文选取在不同营养水平条件下适合生长的藻类物种，在实验室进行选种、驯化和纯化培养，得到水网藻和微藻(主要为微囊藻Miorocystis、小球藻chlorella)；以实验室培养的生长速度快、生产能力高的水网藻为原料，制备一系列环境友好性光敏物质——叶绿素及其衍生物，运用光敏氧化分光光度法测定活性氧(O_2~-，H_2O_2，·OH，和~1O_2)，根据其光敏产生活性氧效率，进行光敏物质的筛选；选用叶绿素铜及其钠盐，以微藻为实验控制对象，以Cu~(2+)作培养对照，在相同光照、营养条件下进行控藻实验。

The partial gene encoded the conserved region of PPO cloning was carried out in 6 species, including Ulva pertusa, Ishige okamurai, Sargassum fusiforme, Mangifera indica, Musa nana, Shiitakae lentinus, Pleurotus sapidus.

发现从低等的真核生物真菌中的香菇和紫孢侧耳，至较高进化的藻类铁钉菜和孔石莼，到高等绿色植物芒果和香蕉，均能够一次性克隆获得PPO的基因，这同时也说明包括海藻在内，PPO基因在生物中是广泛存在的。

This paper listed a great number of records of dinoflagellate cysts with transapical ar-chaeopyte suture in marine and nonmarine deposits and pointed out that the cysts with this structure could be divided into two types which represented respectively two branches of later Cretaceous from marine pyrrophyta.One branch was represented by Palaeoperidi-nium with bipesioid type of reflection plate;the other was represented by Saeptodinium with bipesioid or cinctioid type of reflection plate.

摘 要：本文列举了大量具过顶古口缝的沟鞭藻囊孢在海相和非海相沉积中的记录，指出具这一构造的沟鞭藻囊孢可以细分成两个亚类，分别代表晚白垩世从海相多甲藻类家族中分化出的两个分支：一支以Palaeoperidinium为代表，具bipesioid型反映板式；另一支以Saeptodinium为代表，具bipesioid或cinctioid型反映板式。

The plant floating-bed technology application in Miaojia river showed that the water quality of the plant foating-bed technology applied had preceded evidently than the comparing water, though the water quantity was exchanged largely. There existed a micro-ecosystem at the root aera of floating-bed plant which mainly consists of organic grain, algae, zooplankton, zoobenthos. The mode of "Oenanthe javanica -Ipomoea aqutica" floating-bed mode application realized the whole year run of plant foating-bed technology on polluted water. Hence, the mode is suggested in the following application.

植物浮床技术在苗家河的示范应用研究说明：在水量交换较大的情况下植物浮床技术仍然使示范河段水质优于对照段；浮床植物根际区存在着以有机颗粒、藻类、浮游动物、底栖动物为网络骨干的根系微生态系统：&水芹菜-水蕹菜&浮床模式可实现四季净化污染河水的周年运转，在后续应用中推荐使用此模式。

Pesticidal chemicals are in the plastic casing of the bed and chemicals have probably been added to the water to prevent the growth of algae, fungi and bacteria.

水床中的水不可饮用，因水床的塑料壳体中含有农药成分，而且水床的水中或许增添了化学物质以防止藻类、菌类与细菌的产生。

The nursery water was the best, when microencapsulated diets of "OK" and rotifera were blended at the percentage of 80% and 20%, the nursery water quality was the best during the rearing period, the highest concentration of NH3-Nt (NH3-Nm) was 1.025mg/L (0.0836mg/L),and the highest concentration of NO2-- N was 0.0236mg/L. When larvae emerged, the concentration of COD was 1.526mg/L, Puyrrop Hta was 1000 Entries/ml, and the metamorphic rates of all periods exceeded symmetrically 97%, and the survival rates also higher than the control group fed pure crude diets. The emergence status in P7 period was described as follows: the metamorphic rate: 73.33%; the average tail weight: 2mg; average body length: about 7.604mm; which were 18.30%, 19.3%, 8.4% higher than that of control group respectively.

其中80％欧开牌微胶囊饲料和20％卤虫配合使用的育苗效果最好，在整个育苗期间该实验组水质较好，NH_3-N_t(NH_3-Nm)含量最高为1.025mg／L(0.0836mg／L)，NO_2~--N_2含量最高为0.0236mg／L，出苗时COD为1.526mg／L，甲藻类含量为1000个／ml，幼体各期的变态率较稳定均衡，均大于97％，成活率也高于只投喂天然饵料的对照组，至仔虾第7天(P_7)出苗时，出苗率为73.33％，平均尾重为2mg，平均体长达7.604mm，分别比天然饵料的对照组高出18.30％、19.3％和8.4％，各项出苗指标均明显高于对照组(P＜0.05)；且虾苗活泼健壮、体表洁净、均匀度高。

In order to disclosure the formation rule of predominant species in different nutrition conditions,three kinds of nutrition concentration were selected for the competition experiments with the common species of blue-green algae bloom Microcystis aeruginosa and the common species of green algae bloom Scenedesmus quadricauda .

为了揭示不同营养条件下，藻类优势种的形成规律，选取了3种具有代表性水体的营养盐浓度，对于蓝藻水华的常见种铜绿微囊藻和绿藻水华的常见种四尾栅藻进行了竞争实验。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。