high-pressure sewer flushing vehicle是什么意思

用法例句

The main causes of stain- adsorption and the measure for improving the stain- proof ability of polished ceramic tiles were introduced in this article.

主要阐述了抛光砖吸污的原因以及提高抛光砖防污能力的各项措施。

Brief introduction about the plants of absorbing pollutants and the discussion about the mechanism of absorbing the pollutants;

室内吸污植物简介及其吸污机理探讨

The theory and characteristics of self-cleaning filter,including suction filter,brush(disc) filter and backwashing filter are introduced.

自清洗过滤器具有广泛的应用,对各种形式的自清洗过滤器做了归纳分类,介绍了吸污式、刷式(刮式)、反冲洗式三类过滤器的原理及特点,对于全面了解自清洗过滤器,以及设计开发具有参考意义。