moisture gauge
3.With negative pressure gauge, neutron instrument and monitor research for depth of embedment of groundwater, we can obtain the changeable regulation of the soil moisture change in field and moisture use efficiency in field at childbearing period; in five irrigation water, every time all has deep seepage, and the soil all can reach to saturation; in childbearing period, the mutual change relation of irrigation water and groundwater is active.
4.The practice shows that treatment of adding antistatic agent before spinning should be done according to the problem of worse static in spinning winding of flame vinylon fiber, reducing carding speed, configuring carding cloth reasonably, adjusting carding gauge of each parts should be adopted in carding process, treatment top roller & heavy pressure and lower speed should be adopted in drawing process, reducing speed of rotor spinning process and strengthening the management of workshop moisture temperature can get stable yarn quality.
