查询词典 bivalve

To avoid sampling bias, they restricted their analysis to one group of animals—the bivalve molluscs—that fossilise well.

为了防止取样的偏颇，他们将分析的对象限制在一类化石记录保存完备动物——双壳类软体动物。

The sediment samples were collected from Eastern Rushan Bay in Aug. 2003. The horizontal and vertical distributions of different nitrogen forms were investigated. The relationship between the distribution of different forms and bivalve culture was discussed.

对2003年8月在乳山湾东流区采集的沉积物样品中不同形态N的平面和垂直分布特征进行分析，探讨了这些N的形态分布与贝类养殖之间的关系。

Mar animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide.

有双壳的海生动物，有一对带有触须用于捕食的臂；世界各地均可见到。

Those animals boring into the rock include sponges, bivalve mollusks, and

能够在石灰岩中打洞的动物包括海面、双壳软体动物和

Any of various similar or related bivalve mollusks, such as the pearl oyster.

牡蛎状双壳软体动物任何各种类似的或有关的双壳软体动物，如珍珠牡蛎

The aims of this part of the test are to determine the habitat of the marine bivalve samples and to identify the exomorphological and anatomophysiological characteristics associated to these habitats.

此部分的目的，是要判断不同样本在海中生存的环境为何并指出外部形态及生理解剖特徵，与它们栖息环境的关系。

The results showed that the organization and gene order of the mitochondrial genomes of these bivalve species studied were different from each other. The size, organization, gene numbers, and gene order of mitochondrial genomes in bivalves at different taxa were different.

结果发现，双壳贝类线粒体的基因组结构、基因排列顺序均互不相同；不同目、科和属之间线粒体基因组的大小、基因排列方式以及基因种类也存在明显的差异，尤其是基因排列方式没有明显的规律。

LOBSTER/CRAB/BIVALVES: Bivalve prices are increasing slightly due to a decline in offer.

龙虾/蟹/双壳贝类：由於双壳贝类的供给偏低，价格稍有回升。

An assemblage of borings in bivalve shells is described from shallow-marine deposits of the upper Xintianmen Formation (Early Jurassic, early Sinemurian) near Xiaping, Yizhang County, south-eastern Hunan Province, southern China. Talpina hunanensis ichnosp.

论文描述的双壳类壳体内的钻孔遗迹组合发现于湖南省东南部宜章县下坪附近的心田门组上部(早侏罗世，早辛涅缪尔期)浅海沉积地层中。

A lot of brachiopod and mollusk fossils,including 12 species of 8 genera of brachiopod,14 species of 8 genera of bivalve and 5 species of 4 genera of gasteropod,are collected from the marl and mudstone situated on the bottom of Benxi Formation in Liujiang basin.The mollusk fossils are directly preserved in the upper part or facies change bed of brachiopod fossil bed.Up to now, the materials is firstly reported,especially the mollusk.

柳江盆地本溪组底部泥灰岩及相邻泥岩中产有丰富的腕足动物、软体动物化石，经鉴定有腕足动物10属12种，双壳类8属14种和腹足类4属5种，软体动物保存于含腕足动物层的相变岩层或直接位于其上层，到目前为止，这一丰富材料尚属首次综合报道。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。