quality of the natural water

Permanent e-merged plant community and floating-leaved plant community was built under natural conditions of Wuli Lake, and some submerged plant communities were set up in the enclosures where the water quality was improved and the underwater light intensity increased.

在自然条件下建成了永久性挺水植物群落和浮叶植物群落，在人工控制的围隔环境中改善了水底光照条件，建成了沉水植物群落。

Research on the Quality of Natural Mineral Water

瓶装饮用天然矿泉水质量研究

The site also provides links to related Academy of Natural Sciences resources such as an algae image data database, algae water quality indicator page, and freshwater autecology data.

本网站还提供了其它有关的链接，包括藻类图片数据库、藻类水质指示物、淡水个体生态学数据等。

I operated quartz glass water tube, are used for the principle of natural crystal, after pressure melting, Seiko secret agents from its stable performance and reliable quality.

我公司经营的石英玻璃水位管，是采用纯天然水晶为原理，经过加压熔炼，精工细作而成，其性能稳定、质量可靠。