soil operation的意思|示意

Decades of operation have heated the very soil through which the tunnels run and led to the sweaty climate familiar to today’s passengers.

经过几十年的运作，地铁来来往往那里已变得热了起来，以至如今演变成为乘客所知汗流浃背的环境。

The design principles, system structures, system functions, system characteristics and operation environments of Agricultural Soil Water Engineering Information system (ASWEIS) have been introduced.

介绍了农业水土工程学科信息管理系统(asweis)的设计原则及系统的结构、功能、特点和运行环境。

All sorts of obstacles hindered this operation, some peculiar to the soil, others inherent in the very prejudices of the laborious population of Paris.

各种障碍阻挡了这一工程，有的是因土壤的性质，有的是因巴黎劳动人民的成见。