The driving force of moisture migration in soil is the key of discussing the mechanism of freezing ice and frost heave and the stress of freezing soil.
土中水分迁移的动力势问题是探讨水分迁移成冰机理以及研究冻胀、冻土内应力等冻土工程问题的关键所在。
2
Salt expansion processes in subgrade of Sulfuric saline soil are the external performance of moisture temperature, salinity and stress fields interacting with each other.
Cucumber requires high soilmoisture, it almost suffers drought stress by cultivating and managing improperly in actual production, leading to reduction of output and low quality.