Diatoms of this species, sometimes called "commuter" diatoms, remain burrowed in the sand during high tide, and emerge on the sand surface during the daytime low tide.
这种硅藻，有时被称为“通勤硅藻”，在涨潮时留在沙土中，在白天退潮时出现在沙土表面。
How did diatoms survive if zinc is so scarce?
如果锌如此缺乏，硅藻是如何生存的呢？
Just before the sand is inundated by the rising tide, the diatoms burrow again.
就在沙子被涨潮淹没之前，硅藻再次钻入。
Commuter diatoms, for example, emerge only during those low tides that occur during the day.
例如，往返于通勤硅藻只在白天出现低潮时出现。
However, when diatoms are observed under constant conditions in a laboratory, they still display periodic behavior, continuing to burrow on schedule for several weeks.
然而，当在实验室的恒定条件下观察硅藻时，它们仍然表现出周期性的行为，继续按计划挖掘几个星期。
Shades of green are likely from diatoms.
而暗绿色的则可能是硅藻。
Green algae and Diatoms attach to stones.
绿藻和硅藻附着在石头。
The clamr lives chiefly on planktonic diatoms.
成体以浮游硅藻类为主要食物。
In particular, they are interested in the fate of diatoms.
他们对矽藻类的命运尤其感兴趣。
Diatoms may have other advantages when it comes to oil production.
在产油方面，硅藻可能还有其他优势。
Diatoms are also quite numerous, with the estimated number of species exceeding one million.
硅藻种类也相当多，估计超过1百万种。
In diatoms the vegetative cells are diploid, and are formed directly by the fusion of gametes.
硅藻类的营养细胞是二倍体，它是由配子融合直接产生的。
The toxic effects of fluoranthene on two marine diatoms were investigated using the static method.
采用静态实验方法研究了多环芳烃荧蒽对两种海洋硅藻的毒性作用。
Because the oil is used as a reserve nutrient—like fat—diatoms have evolved no mechanism to secrete it.
由于油的作用是营养储备——就象脂肪似的——所以硅藻没有进化出分泌油份的机制。
Jellyfish, by comparison, are 10% carbon, and diatoms (single-celled algae that are common in plankton) 20%.
相比之下，水母的碳含量为体重的10%，而硅藻(是单细胞海藻，属常见的浮游生物)则为20%。
The most important components of the plant plankton are the diatoms upon which the planktonic animals feed.
浮游植物的最重要的组成是那些浮游动物以之为食的硅藻。
The researchers propose creating a biological solar panel, which will contain diatoms instead of photovoltaic cells.
研究人员提议生产一种充满硅藻而不是光伏电池的太阳能生物面板。
"There are 2,500 species of diatoms in India alone," says Balasubramanian, who is writing his doctoral thesis on these algae.
“仅仅在印度就有2500种硅藻，”Balasubramanian说，他正在写关于这些藻类的博士论文。
Diatoms already secrete silica by exocytosis-a biological process by which cells direct secreted material outside the cell walls.
硅藻已经通过胞外分泌二氧化硅，这是细胞直接把物质分泌出细胞壁的一个生物过程。
Among the common kinds are cyanobacteria, silica-encased diatoms, dinoflagellates, green algae, and chalk-coated coccolithophores.
其中常见的种类是蓝藻、二氧化硅包裹硅藻、甲藻、绿藻和白垩涂层颗石藻。
The Honghu lake had a open, stable environment enriched in plankton diatoms, with less sediment from the river during this period.
此期间，河流带入湖泊的泥沙少，洪湖拥有一个开阔、稳定、浮游生物较多的淡水湖泊环境。
Based on the diatom data from two typical profiles, the correspondence analytical method is introduced into the analysis of diatoms.
本文依据两个典型海洋沉积剖面的硅藻资料，介绍了对应分析方法在硅藻分析中的应用。
The single-celled diatoms below—the likes of which are found in oceans worldwide—were collected with a plankton net in San Francisco Bay.
上图就是旧金山海湾的一个浮游生物网内聚集的单细胞植物硅藻——这种藻类在世界各大海洋都广泛分布。
The walls of some algae differ, e. g. the silica boxes enclosing diatoms, and the calcareous layer on the cell walls of calcareous algae.
一些藻类的细胞壁的化学成分有所不同，例如硅藻属的细胞壁含有硅化物，石灰质藻类的细胞壁含有钙。
There are five kingdoms: animals, plants, fungi, chromists—including one-celled plants such as diatoms—and protozoa, or one-celled organisms.
归有五个界：动物界、植物界、真菌界、茸鞭生物界——包括单细胞植物，如硅藻——和原生动物界，或单细胞生物体。
Ramachandra and his colleagues propose to genetically modify diatoms by manipulating the genes that produce oil so that they enhance its production.
Ramachandra和他的同事们提出通过控制产油基因来提高硅藻的油产量。
Diatomaceous earth (which we shall hereby call DE because it's a lot easier to type) is the fossilized remains of single-celled algae called diatoms.
硅藻土(下文简称DE)是一种被称为硅藻的石化单细胞海藻。
The problem lay with the species of phytoplankton in the bloom. In previous experiments the blooms had consisted of a group of algae known as diatoms.
随着个别浮游生物的增长问题也出现了，之前的实验中，增长的生物是硅藻组成的。
The problem lay with the species of phytoplankton in the bloom. In previous experiments the blooms had consisted of a group of algae known as diatoms.
随着个别浮游生物的增长问题也出现了，之前的实验中，增长的生物是硅藻组成的。
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