引发体系中的微量水分是影响环氧乙烷环氧丙烷无规聚醚起始端基结构,并进一步影响其分子量和使用性能的重要因素。
Trace water in the initiator system is an important factor which affects the initiating terminal group structure and the performance of the random copolymer of ethylene oxide and propylene oxide.
水分的冻结与融化会引发路基的不均匀冻胀、融沉和翻浆。
Freezing and thawing of water will lead to uneven frost, thawing and pumping of the subgrade.
土的冻结,引起水分向冻结区迁移,由此引发的问题在农业、水资源、环境及人类工程的研究中占有相当重要的地位。
Freezing in soil makes water transfer to frozen area, and it plays a very important role in the research of agriculture, water resources, environment and engineering.
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