hidden water中文翻译
Quick determinant of hidden water flowing subsided column in renlou coal mine
注浆加固与管棚支护工艺在过陷落柱冒落带的应用
Available approaches to find out hidden water flowing subsided columns - an integrated prospecting of successive approximation
华北型煤矿陷落柱导水分析及综合预测
In order to overe the disadvantage of 2bps - 2 plastic film mulch seeder with watering apparatus that the operation speed is pmited and the moisture evaporation loss is great , according to the theoretic *** ysis of water movement in soil , this paper offers another watering project - hidden watering under film , designs three different types of watering devices , meanwhile conducts test research with different watering devices in different position the change of the soil moisture content
本课题针对2bps - 2型坐水铺膜播种机坐水后，土壤水分蒸发损失大和机组作业速度低的突出问题，通过对水在土壤中运动的理论分析，提出了在行间膜下的暗道式施水方案，围绕此方案设计了三种坐水部件，并就不同坐水部件在不同施水位置施水后，种子带土壤含水量的变化进行了试验研究。
