Thus the instability of HPAM profile control system on the condition of high temperature and salinity can be solved favorably.
这样,从根本上解决了高温高矿化度条件下普通部份水解聚丙烯酰胺调剖体系的不稳定性问题。
But there are the phenomena of salinity cumulation and eluviation in the arable land, and the soil salinity is relatively even in the profile.
而耕地内土壤盐分存在多次积盐和脱盐过程,培面中盐分分布比较均匀。
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