净化

Based on the analysing of gating system and the sources of slag and the experiments on hydrokinetics of meltal with hydroen bubbles,it is believed that the most important function of filter in gating system are t cleaning of melt metal and the changing of characteristics of the liquid metal flow.

对浇注系统、夹杂产生物来源及金属液体流态进行分析，氢气泡流体动力学实验表明，在浇注系统中过滤器的主要功能是对液态金属产生"整流"净化作用。

A systematic process of treating with Co-Ni residue from zinc hydrometallurgy has been developed.

研究综合回收湿法炼锌净化钴镍渣中的有价金属。

Recovery of cobalt from Co-Ni residue in zinc hydrometallurgy has been studied.

研究了从湿法炼锌净化钴镍渣中回收有价金属。

The microorganism system in the root of the hydrophyte plays an important role in the purification process.

根系微生物在净化过程中起著非常重要的作用。

As one of the hydrophyte, phytoplankton has a broad application.

同时，在河道水流有一定流速存在的水力特性条件下，水生植物是否可以达到预想的净化效果，这是我们急需得知的问题。

Along with the extended construction of ecological watercourse, varies of hydrophyte are used to purify polluted water.

随着生态型河道的推广建设，各类水生植物被用于河道水体净化，然而植被的种植改变了原先河道的水体结构，影响了水体的水流特性。

The purification function and mechanism of hydrophytes are briefly analysed;the corresponding countermeasures are put forward;and the existing problems of hydrophyte applications are pointed out also.

本文阐释了水生植物的概念及种类，介绍了水生植物的景观价值及生态价值，简要分析了水生植物的净化作用及机理，提出了相应的治理对策并指出了目前水生植物应用中存在的一些问题。

According to experiments, the hydrophyte has good effect on getting rid off some severe pollute material, to plant some particular plants can purify the water.

实验证明，水生植物对一些污染较为严重的水体可以起到净化的作用，除此之外还可以对岸坡起保护作用。

Hydrophyte ; water environment ; purification ; remediation of aqatic vegetation

水生植物；水环境；净化作用；植被修复

It contains natural negative ion , which can clear, nourish and whiten skin, resist oxygenation, prevent hypersensitiveness, promote elasticity and restoration, and improve blood circulation.

因含有天然负离子，具有净化、滋润、白皙、抗氧化及防止过敏，促进组织弹力及再生，改善血液循环。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。