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。
2
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。
3
The design principles, system structures, system functions, system characteristics and operation environments of Agricultural Soil Water Engineering Information system (ASWEIS) have been introduced.