查询词典 bivalve

A similar structure or part, such as one that enables the valves of a bivalve mollusk to open and close .

类似铰链的装置类似的结构或部分，如使双壳类软体动物的壳张开闭合的关节

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。

As the product of calcium metabolism, the formation mechanism of pearl and shell of marine bivalve is always the hot field of biomineralization.

作为钙代谢的产物，珍珠和贝壳的形成机理一直是人们研究的热点。

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。

They found that the tropics are the source of most of the world's bivalve biodiversity. More than two-thirds made their first appearance there. Many then migrated to other regions.

他们发现热带是大部分双壳类的起源地，超过三分之二的双壳类在热带首先出现，其中的很多是之后迁徙到其他地区的。

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。

Herbert ran to the beach and returned with two large bivalve shells.

赫伯特还跑到海边去，带了两只大蚌回来。

Marine bivalve that bores into rock or clay or wood by means of saw-like shells.

用它锯一样的壳在岩石、泥土或木头中钻洞的海生双壳类动物。

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。

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。