水库里吃草英语怎么说

"Grass-eating" in a reservoir is generally referred to as "aquatic vegetation management" in English. This refers to the practice of controlling or removing the growth of aquatic plants in a reservoir in order to improve water quality, prevent erosion, and maintain the desired uses of the reservoir, such as for irrigation, recreation, or hydroelectric power generation.
There are several methods that can be used for aquatic vegetation management, including mechanical removal (e.g. using rakes or harvesters), chemical treatment (e.g. using herbicides), or biological control (e.g. using grass carp or other herbivorous fish).
Here are some example sentences in English, with Chinese translations:
"The reservoir has a problem with excessive aquatic vegetation, which is affecting water quality and recreational activities." (水库里有过多的水生植物，影响水质和娱乐活动。)
"The city council is considering hiring a contractor to perform aquatic vegetation management in the reservoir." (市议会正在考虑雇佣承包商在水库里进行水生植物管理。)
"The use of herbicides for aquatic vegetation management has been controversial due to potential environmental impacts." (由于潜在的环境影响，使用除草剂进行水生植物管理一直是有争议的。)