揭示了石灰性土壤地区温室土壤盐分积累、离子组成及酸碱度变化规律。
The rule of salinity accumulating, ion constitution and pH in calcareous soil area greenhouse are opened out.
在在酸碱度、冰点或者钠含量上没有明显地变化。
It showed no significant changes in pH, freezing point, or sodium concentration.
本文着重于讨论下蜀黄土起源的水稻土在稻麦轮种下土壤酸碱度和氧化还原电位的变化。
This paper discussed the changeability of the pH and Eh values in paddy soils(originated from Xia-Shu loess)at rice-wheat(or rade) system.
海洋化学最基本的性质酸碱度在发生变化，而且只要二氧化碳排放量增加，就会继续变化。
A most fundamental property of ocean chemistry, PH, is changing and will continue to change as long as CO2 emissions are increasing.
对土壤核心的物理分析显露在土壤温度和酸碱度上的重大变化在黄石公园发生了在地热土壤站点。
Physical analyses of soil cores revealed that significant variations in soil temperature and pH occurred at geothermal soil sites in Yellowstone National Park.
对土壤核心的物理分析显露在土壤温度和酸碱度上的重大变化在黄石公园发生了在地热土壤站点。
Physical analyses of soil cores revealed that significant variations in soil temperature and pH occurred at geothermal soil sites in Yellowstone National Park.
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