n.弄脏，污秽
Eco - organic soil - less cultivation solves the problems of soil acidification of those facilities melon, salinification and soilborne diseases.
通过有机生态型无土栽培技术解决设施甜瓜栽培中常发生的土壤酸化 、 返盐和土传病害等连作障碍问题.
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