壳

Both halves of this delicate bivalve are exactly matched.

这种精美的双壳贝的两扇完全对称。

When the Thompson quadruplets espied him one day,they called him a bivalve and ran quickly away.

有一天，汤普森家的四胞胎看见他，"双壳贝！"

The aim of the research was to discuss the cluster analysis of chromosomes so as to classify bivalve in the cell level.

［目的］探讨利用染色体参数进行聚类分析，以期在细胞水平上对双壳贝类进行分类。

When the Thompson quadruplets espied him one day, they called him a bivalve and ran quickly away.

有一天，汤普森家的四胞胎看见他，"双壳贝！"喊完后一溜烟的跑走了。

They are a bizarre community of intelligent bivalve mollusks with incredible memories that somehow retain the entire history of the planet.

这是个由一群有智慧的双壳贝类软体动物组成的奇怪族群，它们有著极佳的记忆力，保存了整个星球的历史。

For the gonad development of bivalve offered reference

为双壳贝类性腺发育的研究工作提供参考。

Bivalve mollusk abundant in rivers of central United States.

盛产于美国中部河流的双壳类软体动物。

Use 3 pins for each bivalve sample, and a yellow pin only for bivalve 2, in the following way

每种双壳贝样本用三支相同颜色的大头针标示，黄色的大头针仅用於标示样本2，方式如下

In bivalve molluscs, related phenomena, marker-associated heterosis and distortion of marker segregation ratios, have been widely reported over the past 25 years.

在双壳贝类研究中，与标记相关的杂种优势及偏分离现象在过去的25年中被广泛报道。

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。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了