Little interval of waterdropper should be chosen for sand, but large interval of waterdropper can be chosen for loam soil.
对于砂土，应选择小的滴头间距，而对于壤土则可以选择大的滴头间距。
2
The study in this paper has the directive significance for choosing dripper discharge and interval of waterdropper, as well as, designing irrigation quantity for line source drip irrigation.
该研究对线源滴灌滴头流量、滴头间距的选择以及灌水量的设计有指导意义。
3
Do not place the glass dropper directly into aquarium water unless you plan to thoroughly rinse it (inside and outside) with fresh water before placing dropper back into bottle;