Hesperornis is an extinct genus of flightless aquatic birds that lived during the Late Cretaceous.

黄昏鸟是一种已经灭绝的不会飞翔的鸟，活在白垩纪晚期。

Herbs paludose or aquatic, perennial or under unfavorable conditions annual.

的或，多年植物的或在不利的状况下为一年的。

We visited an aquatic city in Italy.

我们在意大利访问过一个城市。

The change trend was influenced by several reasons such as the aquatic habitat, the ecological characteristics of fish, the community structure of digenetic trematodes and import of live fish.

这种变化趋势受多种因素的影响，即环境特点、鱼类的态习性、复殖吸虫的群落结构、活物运输等。

Fish sauce, a traditional seasoning of East and Southeast Asia countries, is an aquatic seasoning, which remains the unique flavor of fish and its rich taste and eutrophy.

文中在概述了鱼露及其加工工艺的基础,着重对鱼露中的呈滋味及呈气味物质进行了介绍,并对相关方面的研究成果进行了总结,以期为今后鱼露的产及研究提供参考。

The aquatic could enrich the radioactive 89Sr. The maximum concentration factor was 94. 7 for snail, 36. 7 for fish and only 12-6 for honewort.

物对放射性锶都有一定的浓集作,最大的浓集系数,螺蛳为94.7,鱼36.7,金鱼藻只有12.6。

It is concluded that the efficiency of purifying water quality and conserving water resource can be enhanced through planting hydrophytic aquatic vegetation in wetlands.

从数据统计结果来看，应善植群截留功能，藉由设计植群排列及规划植群佔地面积，以达到净化质、涵养源之功效。

The toxicity of mercury ion and pesticide cy-permethrin to tetrahymena pyriformis was observed in this study according to the method of aquatic toxicology.

采梨形四膜虫为实验物评价了汞离子和安绿宝农药的毒性。

The standing crop of mollusk in subarea of Guozheng Lake, both aquatic oligochaete and aquatic insect in subarea of Shuiguo Lake was maximal.

软体动物现存量以郭郑湖最高，栖寡毛类与昆虫均以果湖最高。

In any navigation channel, the following activities are prohibited: abandoning sunken vessels, laying fishing implements impedimental to navigation, and cultivating aquatic plants.

在航道内不得弃置沉船，不得设置碍航渔具，不得种植植物。

Quillworts are heterosporous, mainly aquatic perennials, with a dense rosette of tubular quill-like leaves arising from a short, stout rootstock.

韭目的植物具有异型孢子，是多年植物。其管状条形叶密集簇于粗短的根茎之。

Since is the life in aquatic, also lets us be suitable the water cause natural subcrust current to get down.

既然是活在，且让我们顺着的因缘自然地流下去。

'The negative impacts of overdevelopment of hydropower would destroy the river's diverse aquatic life,' the letter said.

公开信说，电过度开发将会破坏长江物的多样性。

Aquatic sports include swimming and rowing.

运动包括游泳和划船。