查询词典 bivalves

Out front, families are ankle-deep in bivalves, shovelling them into soybean sacks and stacking these in piles. The haul, says a woman with a grin, is on its way to the tables of Beijing.

在屋前，家庭成员们正在没膝的牡蛎堆里把牡蛎装到袋子里并堆放好，一位妇女笑着说，这些袋子里的东西要送到北京的餐桌上。

However, it does not include trade of bivalves, fish health and quarantine issues.

不过，协定没有涉及到双壳贝类、水产品卫生和检疫问题。

Zhikong scallop is one of the most commercially important bivalves in China, but study on its genome is underdeveloped.

栉孔扇贝是我国北方最重要的海水经济养殖贝类之一，在海水养殖产业中占有极其重要的地位。

When they attach to clams, as shown above, they prevent these bivalves from opening.

当它们附在蛤蜊上时，象上面插图显示的那样，它们会妨碍这些双壳类生物打开。

The structure and organization of mitochondrial genomes of 14 marine bivalves and two freshwater bivalves were analyzed using comparative genomics and bioinformatics methods.

利用比较基因组学和生物信息学方法，比较分析了已登录到GenBank中的14种海产双壳贝类和2种淡水双壳贝类的线粒体基因组的结构特征。

BIVALVES/NONTRADITIONAL SPECIES: In France, overall demand for bivalves was poor in June. This month, as a consequence of the holiday season, demand is decreasing in the main cities and is increasing along the coast.

双壳贝类/非传统水产品：在法国市场，6月份双壳贝类的整体需求量偏低。7月份，由於假期的到来，一些主要城市和沿海城市的双壳贝类需求量下在增加。

Mactra veneriformis belongs to Mollusca, Lamellibranchia, Evlame vibranchia, Heterodata, Mactride. It is a kind of economic bivalves, which is normally restricted to the areas of the coasts in China. Some reports about the genetic diversity of some kinds of bivalves have been seen in some articles but have none about Mactra mactra.

四角蛤蜊属于软体动物门瓣鳃纲真瓣鳃目异齿亚目蛤蜊科，是一种广泛分布于我国沿海的经济贝类。

Uptake behaviors of 103Ru and 106Ru by bivalves were great differences: most of 103Ru uptake by the bivalves was in shells and 106Ru mainly distributed in soft tissues.6 The concentration biokinetics

扁藻、'J'球藻和简单角毛藻对这 7种核素的累积在 48 h内即达到平衡，浓集因于为 10'－10'。

The karyotype resemblance -near coefficients among the thirteen bivalves were computed according to the relative length and arm ratio of chromosomes. their average, mean square, extreme margin and standard deviation. The kindredship of thirteen bivalves were analyzed with the method of UPGMA.

方法］根据染色体相对长度、臂比，以及它们的平均值、方差、极差、标准差等参数，计算了13种双壳贝类之间的核型似近系数，用UPGMA法对它们的亲缘关系进行了聚类分析。

Combined with additional sequences of 20 bivalves and 6 gastropods downloaded from NCBI (National Center of Biological Institution), molecular phylogenetic trees were constructed using 4 Polyplacophora species as outgroup. The result resolved by maximum-parsimony, maximum-likelihood and Bayes-induce methods were in congruent with each other, which indicated that all bivalves formed a monophyletic group clustering with its sister-group, Gastropod.

结果显示：所有双壳纲的种类构成了单系发生的进化枝，与其姐妹群腹足纲聚在一起；双壳纲可以分为异齿亚纲和翼形亚纲两大类群，异齿亚纲是单系发生，翼形亚纲的系统发生关系则随方法的不同有所区别，牡蛎科的位置是造成此差异的主要因素。

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。