查询词典 crustacean

A small crustacean of the order Amphipoda, such as the beach flea, having a laterally compressed body with no carapace.

异脚类，端足目动物异脚类的一种小甲壳纲动物，如滨海的水蚤，体侧扁，无甲壳

As the crustacean now appears to be striking out from its bridgehead.

他们在通往城市主要的街道上一车车大量出售这种龙虾。

Arthropleura evolved from crustacean-like creatures in the Carboniferous, and grew so large because of the high percentage of oxygen in the Earth's atmosphere at that time.

古马陆从石炭纪类似甲壳类的生物中进化而来，它的体形之所以长得如此庞大，是因为当时大气层中氧的百分含量高的缘故。

The lead content in the crustacean samples were obviously higher than that in cephalopod and fish samples.

甲壳类Pb的含量明显高于头足类和鱼类。

The dominant species of crustacean and cephalopoda were warmwater, followed by eurythermal, warm-temperate, without cold-temperate.

甲壳类和头足类以暖水性的种类为绝对优势，广温性的种类相对较少，暖温性的种类最少，也没有出现冷水性种类。

The results showed that there were 131 species of necton belonging to 91 genus, 60 families, 16 orders in the waters, among them, fish 89, crustacean 34, cephalopoda 8. The necton mostly belonged to the fauna of Indian-Pacific.

结果表明，该水域共有游泳生物131种，分隶于16目60科，其中鱼类89种，甲壳类34种，头足类8种，大多属于印度-太平洋区系。

The catch rates of necton presented seasonal variation obviously, being more in autumn16.91 kg.h-1） than in winter(10.82 kg.h-1）. According to the catch rates, the fish were the most, followed by crustacean and cephalopoda in both seasons.

游泳生物渔获率呈现明显的季节变动，秋季渔获率（16.91 kg.h-1）高于冬季（10.82 kg.h-1）。2季调查渔获率鱼类最多，其后依次为甲壳类、头足类。

A chela or similar pincerlike structure on the end of a limb of a crustacean or other arthropod.

钳，火钳一种用来抓取的工具，由通过枢轴或枢状剪结合于一端的两臂组成

Some are covered with overlapping chitinous plates; some have smooth hides or snakelike eye tentacles; some have crustacean joints.

有的身体覆盖着厚骨板，有的外表光滑，有的眼梗像蛇一样，有的由甲壳拼接而成。

These results provide the first evidence that an opioid system is involved in the control of reproduction in a crustacean.

这些结果为镇静系统对甲壳动物的繁殖过程有影响作用提供了最原始的证据。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。