藻类

Although they do not heterocyst, but also found that some species are nitrogen fixation, such as the red light ball algae.

虽然它们没有异形胞，但也发现有的种类有固氮作用，如淡红色球藻类。

Heterothallism A condition found in algae and fungi in which sexual reproduction occurs only between genetically different self-incompatible mating types of the same species.

异宗配合：指在某些藻类和真菌中，进行有性生殖时，同一个种的个体是自交不亲和的，只能在异宗的个体之间才能完成交配。

A highly diversified macrofossil assemblage was discovered from the Jiucheng Member of the uppermost Ediacaran of Jinning and Jiangchuan areas in eastern Yunnan. In addition to abundant Vendotaenia and Tyrasotaenia, large multicellular benthos such as Tawuia-like and Longfengshaniaceae fossils with diverse holdfast structures, have a distinct dominance, while there are still some other macrofossils with peculiar configurations as well as indistinct relatives. There is an obvious distinction between this assemblage and the macrofossil assemblages from the Doushantuo Formation and the Shibantan Member of the Dengying Formation in South China.

在中国云南东部晋宁、江川地区的埃迪卡拉系顶部灯影组旧城段，新发现了多样的宏体化石群，其中除了丰富的Vendotaenia与Tyrasotaenia类化石以外，以形体较大的Tawuia类和Longfengshaniaceae科等具固着构造的底栖多细胞藻类化石占据优势，另有一些形态奇特、亲缘关系不明的宏体化石，该组合与华南陡山沱组和灯影组石板滩段的宏体化石组合存在着明显的差别。

Fast growing plants, such as hornwort and waterweed are excellent oxygen providers and remove algae-promoting nitrate from the water.

生长快速的植物，例如金鱼藻（Ceratophyllum demersum和伊乐草是极好的供氧者，并能清除水中促进藻类生长的硝酸盐。

In nature, some green algae can produce hydrogen after incubation under anaerobic conditions, during which hydrogenase is synthesized and activated.

自然界中存在于藻类和细菌中的氢酶是高效的催化氢气氧化和质子还原的氧化还原酶，在生物产氢和能量转换过程中发挥着重要的作用。

In nature,some green algae can produce hydrogen after incubation under anaerobic conditions,during which hydrogenase is synthesized and activated.

自然界中存在于藻类和细菌中的氢酶是高效催化氢气氧化和质子还原的氧化还原酶，在生物产氢和能量转换过程中发挥着重要作用。

Meanwhile sugar-inhibiting action,thermostability and influence of pH and metal hydronium on the activities of the two kinds of samples were tested.

利用10种动物及人的4种红细胞、 15种藻类细胞测定波纹巴非蛤的体液和肌肉凝集素的凝集活力，同时进行热稳定性、pH敏感性、糖抑制及金属离子影响试验。

Inconsequence, the engineering cyanobacteria may be able to use for synthesis of mono-saccharides through strengthened several steps of Calvin cycle with higher 〓 concentration.

近年来发展的代谢工程启发我们是否有可能将光合作用Calvin循环中的几个关键酶转入藻类等光合细菌中使之成为能在较高〓浓度下通过强化的光合作用合成糖类的工程菌。

According to the color index of kerogen and micro-algae fossil, it is demonstrated that thepaleotemperature of the black shale series ranges from 60℃to 110℃.

按照干酪根和微体藻类化石颜色指标，大致确定该地层的古地温为60℃～110℃。

The H value was calculated to be 0.246 using Shannon-Wiener diversity index method.By aquatic reservoir evaluation criteria, combined with the type and density of zooplankton,it could be clearly determined that the water quality was seriously polluted and eutrophic.4.Comprehensive assessment of water quality:Affected by the influxion of sewage, slow flow velocity,high contents of nitrogen and phosphorus,the quantities of both zooplankton and phytoplankton at 1st point were relatively high,with the appearance of various indicator species of water pollution.

计算Shannon-Wiener多样性指数法得出H值为0.246，通过水库水生生物评价标准，结合浮游动物种类和密度，可以很清楚判定水质为污染严重，已经呈富营养化。4水质综合评价：排污口1号采样点受生活污水的大量排入的影响，且水流流速缓慢，水中氮磷含量高，因而浮游动物和浮游藻类数量都很高，而且出现很多污染生物指示种，综合分析该水层水质属污染严重的富营养化。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。