查询词典 plankton

In this paper, 13 lakes and 2 large-scale reservoirs in Wuhan were investigated, the makeup of species , dominance species and standing biomass of plankton, benthon, hydrophyte, fish and et al were carried out. And the bio-indicate method , diversity index are used to evaluate the water body.

本文对武汉市13个湖泊及2个大型水库浮游生物、底栖动物、大型水生植物、鱼类及其它生物的种类组成、优势种的鉴定及现存量的测定结果进行了分析，运用指示生物法、种多样性指数法对所调查水体进行了水质评价。

The ecosystem health of reach from Longyangxia to Liujiaxia had been evaluated by fish IBI,diversity index of plankton,water quantity and water quality.

利用鱼类IBI指数，浮游生物多样性指数、水量、水质等指标，对龙羊峡-刘家峡河段生态系统健康进行评价。

This is the website of Journal of Plankton Research.

这是《浮游生物研究杂志》的网站。

One type of plankton that seems to have great harvest possibilities is a tiny shrimp like creature called krill.

一种似乎具有很大收获可能性的微小的虾状浮游生物被称为鳞虾。

One type of plankton that seems to have great harvest possibilities is a tiny shrimplike creature called krill.

的兴趣。一种似乎具有很大收获可能性的微小为鳞虾。的虾状浮游生物被称为鳞虾。

One type of plankton that seems to have great harvest possibilities is a tiny shrimp-like creature called krill.

一类浮游生物，似乎有很大的可能性是很小的收成虾一样东西称南极。

One type of plankton that seems to have gre at harvest possibilities is a tiny shrimp-like creature called krill.

一种似乎具有很大收获可能性的微小的虾状浮游生物被称为鳞虾。

Relationships among fish,zoo-plankton,phytoplankton,submerged macr ophyte,and bacteria in eutrop hic aquatic ecosystem were analyzed.

实践表明，无论是外源营养负荷的削减，还是各种除藻措施的实行，均不能在大型水域取得良好而持久的效果。

Smaller aggregationsin sound reverberation (20 m) corresponded to the assumed common sizes of macroplankton patches,which are not efficiently caught by Juday nets (Kovalevet al., 1993) and for this reason are not displayed in the spectral density of the plankton field.

较小的主要在声音混响(20米)相对应的macroplankton假定的普通大小的斑块，不是有效的被Juday网(1993)，Kovalevet高庆宇，因为这个原因，并不显示在谱密度的浮游生物领域。

Krill swam with the plankton, a school of young menhaden swam after the krill.

磷虾游弋其中，后面跟着一大群鲱鱼。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。