Through fixed field experiment and determinations of soil moisture, the field water utilization efficiency of wheat and rape seeds was discussed under no tillage and straw mulching.
通过田间定位试验和土壤水分的测定,探讨了免耕和秸秆覆盖还田对小麦、油菜土壤水分利用效率的影响。
The result showed that the treated wood had good dimension stability, and the moisture Absorption recovery ratio of thickness was 2.68%, which indicated that the set of compression was almost fixed.
结果表明:处理材的厚度吸湿回复率为2.68%,具有良好的尺寸稳定性,说明压缩变定效果好。
To clean off the moisture on the surface of the copper rod, a blower is fixed at the end of the guiding pipe.
收线导管出口处装有吹水装置,以清除铜杆表面水份。
Soil moisture content and its dynamics on road embankment and cutting slope at fixed points were investigated on shaanxi-inner Mongolia desert expressway.
采用定位取样法研究了陕蒙沙漠高速公路路堤和路堑边坡土壤水分的季节变化。
Based on the data of observation in fixed location, the pilot study on soil moisture dynamic variation law of farmland in purple soil hilly region has been done.
依据定位观测数据,对紫色土丘陵区农用地土壤水分的动态变化规律进行了初步研究。
Based on the data of observation in fixed location, the pilot study on the law of soil moisture variation in different cropping patterns on dryland in hilly area of Central Sichuan has been done.
利用定位观测数据,对四川中部丘陵地区不同种植模式下旱地土壤水分变化规律进行了初步研究。
Based on the characteristics of heat and moisture loads in cleaning operation room, the non-reheated and fixed secondary air return system was analyzed in the situation that loading changes.
从二次回风空调系统的节能分析,正压控制,医疗建筑废热、废水的再利用,运行管理等方面探讨了减少洁净手术室空调系统能耗的途径和方法。
Based on the characteristics of heat and moisture loads in cleaning operation room, the non-reheated and fixed secondary air return system was analyzed in the situation that loading changes.
从二次回风空调系统的节能分析,正压控制,医疗建筑废热、废水的再利用,运行管理等方面探讨了减少洁净手术室空调系统能耗的途径和方法。
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